T.R | Title | User | Personal Name | Date | Lines |
---|
1649.1 | HOW ABOUT A BURLEY? | AKOV14::FULLER | | Fri Jul 20 1990 10:29 | 3 |
| I would look at the Burley, about the same price and American made.
steve
|
1649.2 | | ULTRA::WITTENBERG | Uphill, Into the Wind | Fri Jul 20 1990 11:49 | 9 |
| I looked around to try to rent a decent tandem and couldn't find a
place that rented them. However any store that sells them will let
you demo one for an hour or so.
I recommend Belmont Wheelworks to deal with, and they carry a
variety of tandems, including Santanna and Cannondale, as well as
some others.
--David
|
1649.3 | Belmont? | ABACUS::GUYER | | Fri Jul 20 1990 11:58 | 3 |
| Thanks Dave. Can you tell me where to find Belmont Wheelworks?
Earl
|
1649.4 | | ULTRA::WITTENBERG | Uphill, Into the Wind | Fri Jul 20 1990 14:16 | 2 |
| Belmont Wheelworks in on Trapelo Rd. in Belmont, MA. I don't have
an address or phone number handy.
|
1649.5 | | TALLIS::JBELL | Zeno was almost here | Fri Jul 20 1990 14:22 | 8 |
| Belmont Wheelworks is on Trapelo Rd a few blocks east of the
intersection with Rt 60. It's on the south side of the road.
They have another branch on the Cambridge/Somerville line,
sort of near the Porter Sq. Star Market. The Belmont
location is bigger though, and might have a bit more selection.
-Jeff
|
1649.6 | try lincoln guide service | IAMOK::SWAN | | Sun Jul 22 1990 09:36 | 2 |
| for rental try Lincoln Guide Service in Lincoln, I not positive
but I believe they rent tandems.
|
1649.7 | Don't Ignore the Nashbar | MILKWY::CRITCHLOW | | Mon Jul 23 1990 14:22 | 11 |
|
I think the Nashbar is worth trying out too. the reason is
that the frame design is a bit stiffer in general.
Bicycling magazine had a great article about this recently.
It has to do with the extra tube that runs from the headset
to the stoker bottom bracket. The Burley does not have
this.
The Burley has the name. But names aren't everything.
JC
|
1649.8 | Find a Club or Someone that rides one a lot. | WAV13::DELORIEA | Jerseys @#%@!& Jerseys | Tue Jul 24 1990 14:55 | 23 |
| >> I think the Nashbar is worth trying out too. the reason is
>> that the frame design is a bit stiffer in general.
>> Bicycling magazine had a great article about this recently.
>> It has to do with the extra tube that runs from the headset
>> to the stoker bottom bracket. The Burley does not have
>> this.
>> The Burley has the name. But names aren't everything.
NOT TRUE. Only the Burley Samba ($900-$1000 26" wheels and designed for low end
market) has the "open frame" design. All the rest of the Burley models have the
extra frame tube like the Santana design. Franks Spoke and Wheel in Framingham
has the Burley Duet in stock ($1000-$1100).
The Burley is a well made with REAL tandem parts on it. I took one for a ride
one day and it was a good ride for the money. A very strong bike that will last
and it handled well. I would think twice abut getting a tandem though mail
order unless you already know a bit about tandems or are in with a group that
can help you with questions. There is more to riding a tandem than meets the
eye. Find a club or a person that has a tandem to take you and you stroker out
for a test ride. Then go out and find the bike you want to buy.
Tom
|
1649.9 | BE SURE BEFORE MAIL ORDERING A TANDEM | AKOV11::FULLER | | Tue Jul 24 1990 16:04 | 7 |
| re: .7
I knew Santana had a name, but Burley?
I agree with .8, tandems require a GOOD test ride. In addition, sizing
becomes important and perhaps come component customization ie: stem
length, pedals, saddles, etc.
steve
|
1649.10 | Tandeming is great on Kuwahara | MRCSSE::MATATIA | | Thu Jul 26 1990 16:25 | 5 |
| I bought my Kuwahara tandem at Franks Spoke n' wheel on route 9 in
Framingham MA. I have owned it over 2 years now. At the time of
purchase I found it to be the best quality per dollar. And of course he
allowed a test ride to see if it was right, which you must do before
buying.
|
1649.11 | I must be losing it.... | MILKWY::CRITCHLOW | | Tue Jul 31 1990 08:34 | 31 |
| Re: .8
I must be getting a little senile.....:-)
But, I thought the beautiful Samba sitting in the Bicycle
Barn (Part of the Spoke and Wheel Group) was about $2K. At
least that is what Don said to me.
Also the Bottom of the line Tandem offered by Burley was
reviewed in Bicycling's yearly Buyers Guide. It was a 27"
wheel road bike with an open frame....Must be getting old...:-)
But, it seems to me that I remember a mention of the
mountain version for a little more money.
I definitely agree that the bike needs to be ridden. I
would advocate getting to one of the Nashbar stores to see
for yourself to make up your own mind.
I was not giving opinions here based on my experience. I
have none. But, I was quoting things I have read. I still
think that frame design is more important than components.
*If* it is true that the $999 Burley has a better
component group than the $999 Nashbar then you have to
wonder where the savings come from. This is the price range
we were talking about in the base note wasn't it?
If and when (I hope) I get enough cash to buy a tandem I
plan on saving until I can afford a more expensive model
that will have a lot of the features I feel I need. That is
probably the key here. Go look and decide for yourself.
|
1649.12 | Real parts? | ABACUS::GUYER | | Wed Aug 01 1990 09:37 | 5 |
| I want to thankyou all for the information. .8 refered to "real"
tandem parts. Could you explain more what that means. I'm willing to
spend more money if it really makes a difference.
Earl
|
1649.13 | Real Tandem (tm) | NOVA::FISHER | Dictionary is not. | Wed Aug 01 1990 10:50 | 6 |
| re: .12: What .8 means by Real Tandem (tm) parts is that the
components were selected with an eye toward greater durability and
heavy duty use. Often this means something closer to an ATB type
of part than a light touring/racing part.
ed
|
1649.14 | Campy's tandem rear hub sounds very interesting... | BCSE::KLASMAN | ALL-IN-1 DESKtop for PCs. dtn 381-0731 | Wed Aug 01 1990 13:34 | 8 |
| RE: Real Tandem parts:
I believe Campy now makes a tandem group (for you folks that like the high-
priced spread). Tne only part that I know of that I'm interested in is the rear
hub, which has an internal roller bearing, in addition to the usual bearings at
the outboard ends of the axle.
Kevin
|
1649.15 | Cannondale tandem head sets | EQUINE::DANI | | Thu Aug 09 1990 09:37 | 32 |
|
Thought I'd add in inquiry to this note:
My tandem partner bought a Cannondale tandem this spring. Since then it's gone
through 2 headsets and is on it's third. We did a douible century in June and
the head set had to get replaced after that. We were only getting 250-300 miles
on it before it had to be replaced.
When it was taken to a shop they discovered that (bear with me I don't know
all the part names) the piece of the frame that the head set fits into,
it's ends were not parrallel. Given it's an aluminum frame and all, there were
phone calls made to Cannondale and such and the shop got the got the go ahead to
try and make a fix. While making the fix, some of the grinding went down very
close to a weld (it weld is the term).
Question: Any other Cannondale tandem owner out there with the same problem?
Like to know if this is a problem with this frame or the Cannondale
tandem frame in general.
Question: Another theory was that the head set was tightening with use. Does
this just happen? Does it ever happen to single bikes?
We're hoping for $$ from Cannondale and perhaps a new frame if the problem
persists.
My tandem partner is away on business for the rest of the month and is allowing
me to have the machine to practice captaining and riding with others. I hope
to bail it out of bike shop prison this weekend and will be doing the testing
of the "fix".
Any comments?
|
1649.16 | Marinoni | MARKS::FRERE | Ellas Danzan Solas | Thu Jan 24 1991 14:01 | 31 |
| Forget Burley! Forget Santana! Look at Marinoni!!
My partner and I bought a custom-made Marinoni tandem - fully equiped -
for less than $2500. The tandem was built with Columbus Tandem tubing
and equiped as follows:
Crank, excentric, BB: Gipiemme
Derailleurs, brakes: Shimano Deore XT
Stems and handle bars: Cinelli
Hubs (40 spokes),
Brake levers, seat posts: Campy
Saddles: Turbo (and Turbo L)
Freewheel: Mallard
We wanted the bike extra stiff so Marinoni put in an extra lateral tube
from the captain's seat tube to the seat stays which allows the
possibility of putting in a 3rd brake (for the stoker).
Marinoni does some of the best paint jobs that you can find. Although
he wanted us to choose a conservative color (usual for a tandem), we
went for a neon yellow with chromed forks, seat and chain stays as well
as the extra BIG tube between the bottom brackets.
One reason for the great price is that Marinoni buys parts in bulf
directly from the mfg so if you're not fussy about having the older
style Campy brake levels or seat post or whatever, you can save big $$.
I don't think that anybody else can beat him on price. A racing
Santana retails for $5000.
For more info, contact me or Chelmsford Cyclery can place an order for
you (508) 256-1528.
|
1649.17 | Double Talk (Tandem club newsletter) | ULTRA::WITTENBERG | Uphill, Into the Wind | Thu Jan 24 1991 15:18 | 20 |
| You might want to look in rec.bicycles There was a discussion
there recently in which there was a lot of praise for the Burley,
saying that at one point they were better and cheaper than
Santanna. Personally, I really like my Counterpoint Opus III, and
my wife won't ride anything else.
The Tandem Club of America puts out a magazine with lots of ads
for used bikes (and a few for new ones). There's also a lot of
information on making tandems work (which parts are good, and so
forth.) They have about 1900 memebers, where a member seems to be
one or more tandems and two people. They hold occasional rallies
(once per year on the east coast, there may be more on the west
coast, with several very active clubs in the midwest), and have
get togethers at other bike rallies as well.
It's a good place to hear what's going on with tandems.
Unfortunately I don't have the address with me, but may remember
to bring it in tommorow.
--David
|
1649.18 | Tandem club address | ULTRA::WITTENBERG | Uphill, Into the Wind | Tue Jan 29 1991 09:58 | 13 |
| The address for Tandem Club of America
Tandem Club of America
c/o Malcolm Boyd and Judy Allison
19 Lakeside Drive
Medford, NJ 08055
USA
Dues are $10/year in the US, US$13/year in Canada, and US$16/year
everywhere else. I find the magazine (DoubleTalk) to be quite
useful.
--David
|
1649.19 | No Phone # in NJ | WFOV12::SISE | WFOOFF::SISE, dtn 242-2447 | Wed Feb 13 1991 17:32 | 21 |
| David,
I just called NJ information and they do not have a listing for any
Allisons on Lakeside Dr.
I have been trying to join TCA for some time so I can get the news
letter. I wrote a letter to the area reps in the SPO area and got
zero response. Before I send of a check for $10 I want to call
SOMEONE to make sure I am sending it to the correct place, and made out
correctly.
If any one can send me a copy of the news letter I would be one happy
camper!!
John Sise
11 Lawler St.
Holyoke, Ma 01040
Or info leading to a live phone #
WFOOFF::SISE
|
1649.20 | | WMOIS::N_FLYE | | Wed Feb 13 1991 19:27 | 9 |
|
Call 413/527-4877. Ask for Sally or Bob. They are the ride
coordinators for the Franklin/Hampshire Freewheelers.
For some strange reason they just bought a second tandem.
Norm
|
1649.21 | Tandem club is there | ULTRA::WITTENBERG | Uphill, Into the Wind | Thu Feb 14 1991 10:47 | 9 |
| John, (in re: .19)
I sent them a $10 check this August, and my subscription started
reasonably promptly (I think within a month.) The Check was to
"Tandem Club of America" I don't have a phone number for anyone
involved in the club here, but I might be able to dig one up at
home.
--David
|
1649.22 | referral | NOVA::FISHER | It's your Earth too, love it or leave it. | Thu Feb 14 1991 14:14 | 4 |
| Linda Harvey, 16 Clinton St, Salem, NH, 03079-2052 is the GSW's
rep to the TCA.
ed
|
1649.23 | Finaly!!! it's Tandem time!! | WFOV12::SISE | WFOOFF::SISE, dtn 242-2447 | Wed Apr 03 1991 18:52 | 18 |
| Well, Just a quick update....
I have been in contact with Sally Peters and Bob Kowaleski in
Easthampton Ma, and talked with them about the TCA...
I have read the copies of the news letters they had.
I called about used ones....... no luck except a santana in fla.
Sally and Bob just got a new noventa (sp) a Santana nivechrome (sp)
framed bike!! man is that nice!
Well to make a long story short it looks as if I will buy her/his old
sovereign. it is a 1987, a Columbus tubed and brazed frame.
Sally and Bob are the same size as Cathy and I so it's a perfect fit.
John_soon_to_be_two_up!
|
1649.24 | who WAS that masked tandem???? | SUSHI::KMACDONALD | sushi: not just for breakfast! | Mon Apr 08 1991 11:12 | 7 |
| Speakin' o' tandems, was that any of you-folk that I saw twice yesterday
on the tandem with neon-lime TT bars? First seen near Jaffrey NH, and
later on near Greenfield NH.... looked like fun! I was the guy that
passed you with a car and later on a bike (powered-style yesterday, MKO
pedal-bike season starts for me at lunch :-) ).
ken
|
1649.25 | First time impressions | WFOVX8::SISE | WFOOFF::SISE, dtn 242-2447 | Mon Apr 08 1991 12:21 | 45 |
| Well we did it! We went to Sally and Bob's place to go for a test
ride.
We went for a short 15 mile spin. Cathy my stoker was VERY up tight.
Every time I went to avoid a bump etc. she would try to shift the balance
to keep the bike going straight.
OR every time she saw somthing of intrest she would stop pedaling.
"Hey, look a muskrat, OOPS sorry". And since she does not have brakes
she thinks that by not letting me pedal it is like using the brakes.
I thought somthing was funny when it got HARDER to pedal down hill!!
I have to admit that I did it to her a few times when I would stop
pedaling to shift my butt on the seat.
All in all we liked the bike. Is was STIFF I was pleased at just how
tight the bike felt. The bar cons shifted better than my duraace on my
road bike, and the six speed had more of a jump between gears than I
was used to.
We agreed to buy it, and went to pick her up the next morning. We went
on an organized ride of 29 miles of which we did 26.3 as we followed
some people that went the "short" way home in error.
It was nice being together for the ride, and we enjoyed the workout.
We did well as a team, but need to work on out starts and stops!
I did feel that it was more demanding on me than my road bike.
I could not move around as much as I do on the single. We sat and
spun a lot. My shoulders, hands, and back took more of a beating due
to the extra effort required.
We had the pedals set up out of phase, and I liked it. I liked the
smooth power transfer to the rear wheel. We tried some out of the
saddle climbing. We need some work on that. I feel ok, but Cathy
fights the movement of the bike. She needs to trust, and let go a bit.
The only other problem is that I can't get it into any of the rooms in
our house!! So she sits in all her splendor in the hallway just inside
the front door. Just one more reason to sell the house!
I would like some suggestions on high pressure 27" tires.
John_who_needs_to_get_back_into_shape!
|
1649.26 | Guilty by Association!! | CTHQ2::FRERE | Ellas Danzan Solas | Mon Apr 08 1991 22:54 | 14 |
| Did the neon-lime TT bars match the color of the rest of the bike??
That was me and my trusted stoker, Nancy. We showed up in Nashua for
an organized century and found out that we were it. Nashua-Townsend-
Ashby-Peterborough-Jaffrey-Greenfield-...-Nashua. Can't say I remember
seeing you, Ken, but wasn't paying too much attention... You can't
believe the attention that we get with a neon lime tandem. Add a
neon-lime Giro helmet and people start looking for antennas sticking
out of our heads...
Next weekend: Lowell to Simsbury Ct on Sat. Return on Monday (God
willing). Any other tandems ready to join us?
Eric
|
1649.27 | Why out of phase? | BCSE::KLASMAN | ALL-IN-1 DESKtop for PCs. dtn 381-0731 | Tue Apr 09 1991 08:28 | 20 |
| re:
We had the pedals set up out of phase, and I liked it. I liked the
smooth power transfer to the rear wheel. We tried some out of the
saddle climbing. We need some work on that.
I can't imagine that you'll have much luck standing to climb with your pedals
out of phase...you won't be able to rock the bike together; you'll be twisting
it. Seems like that can't be too good for the frame. In less than one season
my wife and I became quite adept and climbing together out of the saddle. Its
very powerful.
Enjoy!
Kevin
ps. Don't worry too much about it being harder on you than your single. Until
you work out the teamwork aspects, you'll probably not be very efficient, and
a tandem is a lot of bike to haul around, esp up hills. It is a very selfless
endeavor.
|
1649.28 | Didja see a motorbiker trying not to crash??? | SUSHI::KMACDONALD | sushi: not just for breakfast! | Tue Apr 09 1991 18:15 | 13 |
| > Did the neon-lime TT bars match the color of the rest of the bike??
> Ashby-Peterborough-Jaffrey-Greenfield-...-Nashua. Can't say I remember
> seeing you, Ken, but wasn't paying too much attention... You can't
Can't say as I was paying that much, either, as the powered-sickle and
me have had only a BRIEF acquaintance; but yeah, sounds like you, so it
mustard ben ewe :-). Gotta pile on powered-miles for the next couple
weeks to practice for a license (powered-cycle sounds easy compared to
riding a tandem with a new partner, 'least my power-bike doesn't fight
back!), and THEN we can start working more on real pedal-miles for the
year....
ken
|
1649.29 | You call neon greeen wierd??? | ULTRA::WITTENBERG | Uphill, Into the Wind | Tue Apr 09 1991 19:14 | 14 |
| You think you get attention just because the bike is a wierd
color? That's almost normal. Try riding on our Counterpoint tandem
if you want attention. Everyone we pass seems to swivel their
heads around for a better view. It's particularly fun to watch
someone pass us. It looks almost normal from the back, but as they
pass they realize that something's a bit odd. The recumbent stoker
in front of the captain just looks wierd.
--David
ps. It's also a great bike for people with different riding
styles. My wife coasts when she gets tired, and it doesn't affect
my cadence. The ability to ride at different cadences is also very
handy.
|
1649.30 | Super charged with a 14 year old! | WFOVX8::SISE | WFOOFF::SISE, dtn 242-2447 | Wed Apr 10 1991 09:11 | 22 |
| I took the tandem out for a short "blast" last night with my step
daughter. WHAT A DEAL! No seat post change needed, and Cathy's shoes
fit her(look cleats).
The Tandem sprung to life with the high output "2 stroke" motor in the
back! She is a 14 year old 80 pound tom boy. Oh would it be nice to
be young again.
She was laughing the whole time we were out. "how fast are we going
now?" We were climbing some small hills @16mph, and on the flat
@27-31mph!
She was in charge of the "bell" and was dinging everyone in sight.
I WAS going to take the race bike on the ride this Sunday, but now I think
I will go with her on the tandem. What a deal, a house with two
stokers. My wife works most Saturdays, and I thought the tandem was
just going to sit..... not now. :-)
John_with_interchangable_stokers
|
1649.31 | What about real young stokers? | GSFSWS::JSMITH | Chromed Cannondale | Mon Apr 15 1991 15:33 | 8 |
| re -1
I have a six year old daughter with long legs. Would
anyone having any experience with a young child stoker care to
comment on the pro's and con's of tandeming with children? Thanks
in advance....I've been wanting to do this for years and now I'm
looking for justification :)
_Jerry
|
1649.32 | | ULTRA::WITTENBERG | Uphill, Into the Wind | Tue Apr 16 1991 18:16 | 19 |
| I'm told riding with kids is a lot of fun. There was an article on
this in a recent Bicycle USA, where the author rode with a
kindergarten aged child.
For most tandems you have to get a "child back" conversion, which
consisits of a crankset halfway up the rear seat tube (the height
is adjustable) and a chain from that down to the standard
crankset. This can grow with the child. You will have to work on
all the standard tandem coordination, and the toughest might be
getting her to keep your cadence.
For more radical types, the Counterpoint Opus has a short stoker
pedal boom as an option, which lets you ride with almost any
height stoker. You do have to add or remove chain links it the
stoker's height changes drastically, but that's easier than any
other alternative. It also has a freewheel between the stoker and
the captain, so the stoker can coast.
--David
|
1649.33 | RANN trailer? | DOOZER::PENNEY | Richard Penney 830 4114 @RKA 1/19 | Wed Apr 17 1991 07:42 | 26 |
| o_ --o ---
/-------/-------/o_______
----/\ /\ /\---- \ o- ---
/ / \ \ / \ // \ \ ---|-----/
| o | \O \O----o | \ /\-
\ / \ / \O--o |
---- ---- ---
^___________________^
Another possibility may be a RANN (sp?) trailer. It's a sort of half-bike
which you attach to the rear of a normal bike or tandem, and is sized for
children. The form of attachment is a pivot allowing rotation in a
horizontal plane (for going round corners), but in such a way that it can't
lean independently of the bike it's fitted to. It has its own saddle,
handlebar, cranks, chain and wheel, so the stoker - if termed as such - can
either make a real contribution to progress or simply freewheel. I haven't
seen one for a few years, so can't remember if its own wheel is smaller
than normal size (as I've tried to illustrate), or if it's full size. I
think the former.
I don't know who made them originally, but in recent years the manufacture
was taken over (exclusively?) by Bill Hannington - the last surviving
lightweight frame builder in Reading. He now calls them HAN trailers and I
think still builds them to order. Want me to check prices etc?
- Richard
|
1649.34 | Tandem tire questions | WFOV11::SISE | WFOOFF::SISE, dtn 242-2447 | Wed Apr 17 1991 09:19 | 27 |
| I have a cut in my rear tire on my tandem. it is a spec. K4 27X1 1/8.
I have a Spec. turbo 27X1 1/8 in the front.
I would like to run Kevlar belted tires in front and back. I would
like input on size 27X1 1/8 vs 27X1 1/4 for "sport" riding. I am 200
lbs, and my stoker weighs in at 137 for a total of 337 lbs.
So far I have not had any problems with the tires that are on the bike
now, other than the rear has a side wall cut. (only 68 miles so far)
I looked at the Conti tires and like the slick. (in 700X23 it is rated
at 125 psi.) It is said to have a VERY tough sidewall. The shop in
Amherst is checking into availability of the 27x1 1/8 and 1 1/4 slicks.
ALL of my tires have had to be replaced due to sidewall cuts. Three
on my road bike last year. I don't just get a puncture that is fixed
by replacing the tube. I have to get a cut from the center of the tire
to the rim!
The tires I use on the road bike are Avocet K20 700X25 pumped up to
115 psi. I love the way they handle!
Before I shell out the bucks I thought I would ask in this file of
"experts" :-)
john
|
1649.35 | no big deal | NOVA::FISHER | It's Spring | Thu Apr 18 1991 08:28 | 3 |
| I've run 1 1/8's on my tandem for 1000's of miles.
ed
|
1649.36 | Keep the psi up. | CTHQ1::FRERE | Ellas Danzan Solas | Mon Apr 22 1991 10:25 | 9 |
| I ride 700x28. I had Spec but I'm moving over to Matrix kevlars.
Although the Specs rode ok, they were a real b*tch to put back on the
rim - especially when you're on a roadside.
We could ride 700x25 but our total body weight is ~300 lbs and I would
be worried about flats. Whatever you use, keep the pressure no less
than 105 psi.
Eric
|
1649.37 | why tandems need drum brakes | ULTRA::WITTENBERG | Uphill, Into the Wind | Mon Apr 22 1991 19:13 | 72 |
| Here's an interesting anecdote about the need for hub (disk or
drum brakes) on tandems. It came over the usenet today. This is
the second description I've heard that said that the drum was hot
enough to boil water. It also mentions that he was worried about
the brake pads on the rim brakes melting. I've heard reliable
reports that that can happen from people who have seen the
resulting melted pad.
Note that the weight of the bike and riders was 360 lbs. and if
you tow a trailer with a tandem, the combined weight could easily
be significantly higher.
--David
------------------------------------------------------------------
A while back there was a thread on the heat generated during braking
on steep hills (one netter even pedalled down a hill with his brakes on
to see how high the pressure in his tires rose). Having taken our tandem
up Mt. Diablo yesterday, I figured I'd add one more data point to the
collection.
The last 4.5 miles to the Diablo summit (and hence, the first 4.5 miles
of the descent) are an average 7% grade, with steeper sections in some
places. The weather was gorgeous at the bottom of the mountain, and after
all the climbing, my jersey and jacket were completely soaked through by
the time we reached the top. Unfortunately, the top of the mountain was
in the clouds: humid and only 50 deg F. To keep from freezing on the way
down, I decided to take the descent slowly. So, we averaged about 18 mph
down the first 4.5 miles. (Without braking, we can easily break 45 mph on
7% grades if the switchbacks aren't too severe).
The bike + the two of us weighs about 360 lbs, and I didn't really want
to test how long the cantilevers (and my wrists) would hold up to braking that
load, so we jammed our Arai drum brake on full, and I just used the cantilevers
to modulate the speed on some of the steeper switchbacks. We stopped at the
bottom of the 4.5 mile stretch to see if we were heating things up. The rims
felt perfectly fine, but I got a heat blister from touching the drum! Not
only was the drum (1.5 lbs of solid metal) hot enough to boil water, but it
took over half a small water bottle to cool it to the point where the water
didn't sizzle when it hit the brake. We could actually feel the heat from the
drum several inches away (great for warming cold hands!). If all that energy
had been put into the cantilevers/rims, it wouldn't surprise me at all to have
blown the tires off or melted the rubber on the pads.
Needless to say, we stopped much more frequently on the rest of the
descent, and made it to the bottom without incident.
Ben
--
Benjamin J. Schwartz [email protected]
Dept. of Chemistry U C Berkeley or [email protected]
"Violence is the last refuge of the incompetent" -- Salvor Hardin
usenet headers:
In article <[email protected]>,
[email protected] (Benjamin Schwartz) writes:
Path:
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From: [email protected] (Benjamin Schwartz)
Newsgroups: rec.bicycles
Subject: heat generated during braking
Message-ID: <[email protected]>
Date: 22 Apr 91 17:11:12 GMT
Sender: [email protected] (Charlie Root)
Organization: University of California, Berkeley
Lines: 37
Originator: [email protected]
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1649.38 | I'd pump them up higher than 105! | BCSE::KLASMAN | ALL-IN-1 DESKtop for PCs. dtn 381-0731 | Tue Apr 23 1991 08:59 | 7 |
| re: .36
We ride Spec. Turbo/S 700x28 on our Santana. I always pump them up to 120lbs to
avoid flats and reduce rolling resistance. Haven't had any problems over-
inflating these tires. Total rider weight is low: about 260 lbs.
Kevin
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1649.39 | ABUSE of equipment! | WFOVX8::SISE | WFOOFF::SISE, dtn 242-2447 | Tue Apr 23 1991 09:09 | 20 |
| re.-1
David,
This is an excellent example of how NOT to use a drum brake.
Just jam it on and not use the other brakes for over four miles, and
expect it to do ALL the work.
WTF would you expect to happen to the drum.... in 4+ miles!
I wonder how the bearings stood up to that heat!!
I do believe that it is a good idea to use a drum brake in the hills,
and when I do, I will.
Interesting story. Thanks for posting it!
John
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1649.40 | 120-125 psi | WFOVX8::SISE | WFOOFF::SISE, dtn 242-2447 | Tue Apr 23 1991 09:21 | 14 |
| Kevin,
Thanks for the reply. I also am running 120 psi in my tires on the
Tandem. I will stay with 27x1 1/8, the 1 1/4 seems a bit much.
The Turbo/S that I have is defective, it has a "wiggle" in it. The rim
is right on, but the tire has a S in it. At first I thought it was a
bent rim, then after closer inspection I found it was the tire.
Right now the motor needs the MOST work!!!
John
Note: my last reply should have said "re: .37"
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1649.41 | Please make bigger Vittoria clinchers. | WMOIS::N_FLYE | | Wed Apr 24 1991 20:48 | 14 |
|
Just to add my .02 cents worth. On my tandem I run continental 700x23
slicks. I weigh 150# and the heaviest stoker has been 180#. No flats
as of yet. I run the pressure at about 130psi. FAST and SMOOTH.
I did have a pair of Specialized 700x28 turbo R's on the tandem but
switched to the Continentals and like the Conties much better. An
interesting thing I discovered is the Specialized tires actually
measured 700x24. I measured the outside cross section (inflated) with
a pair of vernier calipers.
Norm
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1649.42 | Trek and Specialized tandems coming | ULTRA::WITTENBERG | Uphill, Into the Wind | Tue Sep 10 1991 16:13 | 19 |
| Saturday (7 September, 1991), the New York Times had an article on
tandem bicycles on the front page of the business section. It said
that Trek and Specialized were getting into the tandem business,
and that Cannondale would start selling complete tandems (now they
just sell tandem frames, and shops can build them into bikes.)
The article also said that this would probably not hurt the
specialty tandem builders (Santanna and Burley) much, but would
instead build the market for all tandems the way Specialized's
mountain bikes greatly increased the mountain bike market without
driving the originators out of business.
Other interesting note from the article: Burley makes over half
the tandems built or sold (I'm not sure which) in the US.
Apparently a similar article appeared in an Oakland paper this
weekend as well.
--David
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1649.43 | BUILDING A TANDEM IS TIME CONSUMING | AKOCOA::FULLER | | Tue Sep 10 1991 17:21 | 9 |
| re:.42
I actually built a tandem up from scratch, a Cannondale, for a friend's
bike shop (O'neil's in Worcester). It took me 6 hours non-stop...
and it still needed some fine tuning. Perhaps fully built up good
tandems will help shops push these fun machines. Perhaps more vendors
in the market will help supply of tandem parts
Steve
Who is very much enjoying the used Santana we puchased
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1649.44 | Where? | NOVA::FISHER | Rdb/VMS Dinosaur | Wed Sep 11 1991 08:28 | 6 |
| Ok, Burley makes [or sells] more than half the tandems in the US.
Did it say where the Trek and Specialized tandems were going to be
made?
ed
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1649.45 | More on Burley | CTHQ1::JENIN::FRERE | Ellas Danzan Solas | Wed Sep 11 1991 10:08 | 11 |
| I was talking to a friend that works at Burley and she told me about Trek
getting into the tandem business. I don't know where but I would assume it to
be in the U.S. (Wisconsin). The word (unofficial) was that Trek and Santana
where talking but it looks like the talks broke off.
Clarification: Burley does not make tandems. It is subcontracted to a local
company (ATP). The painting is done down the road from Burley and Burley does
the assembly. The owner of ATP (I think that's the name) was with Burley (I
think he owned Burley), sold it to the few employees as a cooperative and
started ATP. ATP markets other bikes and a few tandems but are very
dependent on Burley's business.
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1649.46 | Is Nashbar a relabeled _____? | WUMBCK::FOX | | Wed Sep 11 1991 10:31 | 5 |
| Sorry if this has been asked, but who makes Nashbar's tandem?
Anyone have experience with one (or with the same one under a
different badge?)
John
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1649.47 | More on Trek Tandems | ULTRA::WITTENBERG | Uphill, Into the Wind | Tue Oct 08 1991 12:39 | 13 |
| I was talking to the folks at Lincoln Guide Service (who will be
carrying the Trek tandem), and learned a bit more about it.
There will be two models which share a frame. The frame has the
same wheelbase as the Santanna, but a longer stoker top tube and
shorter chainstays. (A lot of people have told me that Santanna's
stoker position is cramped. This should help that.) The shorter
chainstays may make the stoker's ride a bit rougher. They use 700C
wheels, and Shimano components (don't remember what level).
Prices are at the Burley level, around $1200.
--David
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1649.48 | Sounds to cheap to me | AKOCOA::FULLER | | Tue Oct 08 1991 14:04 | 9 |
| re:.47 $1,200 seems a bit low. We'll see. I think BICYLING
mentioned to have 2 models, $1,500 and $2,000. If you want a
long stoker top tube, try the Cannondale. It is 29" on the 18" stoker
frame size!
PS Why don ANY of the new Tandems come with disk/drum brakes? Also
some are coming with 36 spoke wheels. Distruction seems likely.
Steve (who's used Santana with a few upgraded components is doing fine)
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1649.49 | | ULTRA::WITTENBERG | Uphill, Into the Wind | Tue Oct 08 1991 15:14 | 10 |
| The low price did strike me as odd. Maybe they figure that they'll
have enough volume to justify it. I was told of two models, but I
thought they were $1200 and $1400 or something like that.
Drum brakes are out of style as people ride with less equipment.
They are a bit less important for credit card touring than for
loaded touring. Also, they cost about $100. That's a big cost for
a $1300 bike.
--David
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1649.50 | Trek Tandem Stats | CTHQ3::JENIN::FRERE | Ellas Danzan Solas | Wed Oct 09 1991 11:55 | 14 |
| The Trek T200 (Fast Track) and T100 (Double Cross) suggested retailed prices are
$2,200 and $1,500 respectively. The T200 is mostly equiped with XT while the
T100 is DX components. As suggested by their names, the T200 is a road tandem
and the T100 is a hybrid. The T200 has end shifters and the T100 has DX Rapid
Fire (both 7 spd). The respective chain ring sizes are 54/42/32 and 50/40/30.
They come in 3 frame sizes 54/50, 58/53 and 62/56 (4/3 cm increments). The
captain and stoker top tube lengths are for each of the above frame sizes:
54.5/69, 56.5/71 and 58.5/713 respectively (2 cm increments). Both frames and
stays are made with Trek designed True Temper tandem Cro-moly. The forks are
Tange Durango double butted Cro-moly with cast fork ends.
...but that's all I know ;-)
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1649.51 | Address and/or phone number of Ibis | CTHQ3::JENIN::FRERE | Ellas Danzan Solas | Wed Oct 09 1991 11:57 | 5 |
| Does anybody out there have the address and/or phone number of Ibis?
Thanks,
Eric
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