T.R | Title | User | Personal Name | Date | Lines |
---|
160.1 | Alternatively, -> Cylcocross | KIRK::JOHNSON | Eminent Tautologist | Mon Oct 27 1986 15:14 | 5 |
| Another possibility is cyclo cross. I know nothing about the
sport or its equipment, but it sounds intriguing. Any chance
the Fuji would make a better Cyclocrosser than a mountaineer?
MATT
|
160.2 | don't expect too much | APOLLO::DEHAHN | | Tue Oct 28 1986 07:56 | 35 |
|
The main differences between a cross bike and a mountain bike are:
o Frame - the mountain bike uses oversized tubing, and is smaller
in stature than a cross bike (you should be riding at least one
frame size smaller on a MTB)
o Wheels - The MTB uses 26 inch wheels, usually at least 1 3/4"
wide tires. The cross bike is invariably 27" (700C) with cross
tubular tires (32mm)
o Gearing - Most MTB's have triple chainwheels (15-18-21 speed).
Cross bikes use a single chainwheel (5-6-7 speed).
Sure, you can hack your Fuji up, but you'll never make a $600
mountain bike out of it. You'll spend $200 and probably not even get
a $200 MTB out of it. The lower priced MTB's are really a bargain...
I spent $260 for my Cycle Pro and have gotten 3X that in enjoyment
out of it...and the main thing that seperates it from the $600 ones
are the components, which can be upgraded later (as they break 8^)
Your best bet for mod's is to attempt making a cross bike out of
it, but remember, unless you're 6 foot 10 it's going to be too tall
for you, too much frame for you to handle on rough roads. Be prepared
to trash the paint job when installing braze-ons, like cantilever
brake bosses. Also, expect it to ride very rough, as the frame geometry
is too stiff/steep/long for off road. The best type of frame to
attempt a cross conversion on is a small, strong touring or road
racing frame.
But if bucks are the bottom line, and your expectations match your
budget, then what the heck.
CdH
|
160.3 | Well, I've got this other frame... | KIRK::JOHNSON | Eminent Tautologist | Tue Oct 28 1986 08:58 | 14 |
| On the other end of the scale, I also have an old Raleigh
Sports touring frame designed for 26" wheels. It's only
about a 20" frame, though, so I was a little concerned that
it might be too small. Maybe it would be a better prospect
for an MTB conversion.
It sounds like the Fuji might not be all that bad for cyclocross,
but what is cyclocross all about, anyway? I've seen pictures
of guys scrambling up mudslides with these bikes slung over
their shoulders (sounds like fun! :~}), but I have no idea what
else they do, how long races are, or how off-road performance of
one of these compares to an MTB. Any cyclocross racers out there?
MATT
|
160.4 | 3 speed frame? | APOLLO::DEHAHN | | Wed Oct 29 1986 07:12 | 14 |
|
I don't race cross, but the rest of the team does. I'm just not
that crazy about running up steep hills in the rain, slogging through
knee deep mud, crashing 10-20 times per race, and destroying expensive
equipment at an alarming pace.
It's very popular in Europe, though, and the season is now in full
swing. New England does have these events, there's one in Brimfield,
a series in Plymouth and the championship is in New Jersey.
Watching, for me, is much more enjoyable than participating.
CdH
|
160.5 | | KIRK::JOHNSON | Eminent Tautologist | Wed Oct 29 1986 08:49 | 5 |
| Yeah, the Raleigh is a 3-speed. I looked at it last night, and
it's hopeless. I'll continue scheming about things to with the
Fuji...
MATT
|
160.6 | | APOLLO::DEHAHN | | Wed Oct 29 1986 16:54 | 8 |
|
What about you? How tall are you, what's your inseam length? Are
you built stocky or lanky?
Just trying to get some ideas.
CdH
|
160.7 | Some Specifics | KIRK::JOHNSON | Eminent Tautologist | Wed Oct 29 1986 17:08 | 12 |
| I'm about 6'1", wear 33"/34" inseam pants, and weigh 185 or so.
I ride a 58cm or 59cm Olmo racing bike these days for my primary
recreation. The 25" Fuji was just a little too big, but not
bad for touring. I'm definitely not worried about the frame's
finish: it's already 8 years old.
I inadvertantly saw a little off-road action on my Olmo today,
when I got lost in Harvard, MA, and ended up having to ride it
up a steep dirt road (being chased by a beagle, no less!). Those
115 PSI slicks don't spare you much in the dirt...
MATT
|
160.8 | | APOLLO::DEHAHN | | Wed Oct 29 1986 17:20 | 32 |
|
Re: Olmo
Nice bike. 58 cm. sounds like a great fit for racing.
Re: Fuji
25" (63 cm) is a bit too big for a cross frame for you, but not
out of the ballpark. I was just concerned about being there. How
many 5'6" guys have you seen riding 25" frames "because it's macho"?
If you can do the conversion at minimal expense, what the heck,
go for it. If you really like this type of riding then you can pick
up a better quality used frame (Raleigh Pros are popular for this)
to convert. If you need odd parts let me know, I'll check the basement.
Re: dirt
I love off road action on the racing bike. In the now-defunct Maine
International, we used to race about 5 miles in dirt, part of it
up a very steep climb. I always blew by others up that hill, because
I used to train for it. Also, the Stowe road race has another dirt
section that's somewhat difficult, but important, because it's a
couple of miles before the finish. High speed dirt road bikehandling
skills really help. We used to train on Pine street in Sherborn,
about a two mile stretch of nasty dirt. We'd sprint for about a
half mile before the start of the section, to make sure we were
hitting it at a race pace. I always got beat on that stretch by
my training partner.
CdH
|
160.9 | Going for it! | KIRK::JOHNSON | Eminent Tautologist | Thu Oct 30 1986 11:11 | 27 |
| Thanks for the tips. I feel a lot more confident now about trying
the conversion. I don't care if the bike's world class: I just
want to get a taste of the action.
From what you say, cross bikes have a particular 700c wheel,
cantilever brakes (may I forgo these for now?), and cross tires.
What kind of gears do they run? What other special components
should I be looking for? I want to hang quality goods off of
this frame, so that I can use them if I upgrade. Feel free to
name names of brands and shops were I can get them.
I currently have (and expect to be able to use):
seatpost, seat, bottom bracket, headset, center-pull brakes,
brake levers, front and rear derailleurs (34-tooth shift range
on the rear, I believe), 13-28 six-speed gear cluster,
downtube-mounted indexed shift levers (is that where they go
on a crosser?), and a chain. If I get wheels, tires, crank,
handlebars and stem, I (naively) assume I'll be in business.
I should correct something I said earlier about the Olmo.
I claimed it was a form of recreation. Actually, I think it
approaches something more like true love (WHY does it have
to start getting cold NOW????)...
Once again, thanks for your help.
MATT
|
160.10 | | NOVA::FISHER | | Fri Oct 31 1986 07:01 | 20 |
| I saw a frame that was made for cyclo cross last winter.
It was a 5 or 6 speed. The chainwheel had guards on both sides to help
keep it from getting tangled or thrown. I'd say that it was something like
a 42 to 45 toother.
The shifter was a barcon. There are times that you don't want your hands
to get far from the bars. The shift cable traveled above the down tube and
over the bottom bracket also to help keep it from getting fouled.
Paul at Category 1 Cyclegoods can give you more details about it.
If you switch the Fuji to 700c wheels, your brakes may not reach. I'd say,
better to go with the 27's that you have and something like a specialized
tri-cross 27x1-3/8 tire (10.49 at Nashbar, if they have 'em). Your rims
have to be able to handle a 1-1/4 tire, I think they do.
GO FOR IT.
ed
|
160.11 | long reply | APOLLO::DEHAHN | | Mon Nov 03 1986 10:23 | 57 |
|
This is try #4 for entering this reply in here, I've gotten "ERROR
WRITING RAINBO:" every other time. Anyone know how to recover lost
replies?
Anyway, Mr. Fisher gave you most of the info. I'll elaborate (ho
hum)
seatpost, seat, headset, bars & stem - nothing special.
wheels - should be good strong tubulars, like Mavic GP4, 36 hole,
14G straight spokes. Hutchinson makes a great cross tire. 4 cross
is the lacing pattern. You can use clinchers, but they won't be
as strong for the weight.
bottom bracket, crank - you can't use your BB with a single chainwheel,
the chainline will be off. Get a cheap track crankset with BB (Sugino
makes a nice inexpensive one), and have the shop swap out the 1/8"
sprint chainwheel to a 3/32" road chainwheel. Number of teeth is
debateable, I'd start with a 44T. The crank must be set up with
double chainguards, the kind you see on inexpensive bikes to keep
your pants off the chain. They bolt onto the crank, either through
the spider arms or as part of the chainwheels. They should look
like this:
chainwheel--+
V
chainguard--->|X|<---chainguard
|X|
|X|--+
|X| |<---crankarm
|X| +-O<---pedal
Pedal preference is towards regular road pedals with clips and straps,
but there is a small faction that likes MTB/BMX pedals (with spikes)
and no clips.
brakes - your centerpulls should do ok for now, but see if tandem
brake pads will fit. You may have to add extra spacers to your brake
center bolts to accomodate them. If your centerpulls won't fit a
700c wheel, let me know, I might have a set in the dungeon.
derailleurs - the front is unnecessary, your rear should be ok.
Shifter is almost always a single barcon on the RHS of the bars.
Suntour makes a cheap set, maybe if you're nice the shopowner will
sell you just one.
cluster - 13-28 will get you started, but a 15-26 is better. You
can add this later.
bar tape is always cloth, some use foam underneath it.
Enjoy!
CdH
|
160.12 | now that I think of it... | APOLLO::DEHAHN | | Mon Nov 03 1986 10:29 | 8 |
|
Your cranks should be ok. Just use the single chainwheel on the
inside. You might have to get a set of chainwheel bolts for a triple
crank, though, to fit the chainguards on (if they mount that way).
CdH
|
160.13 | | CESARE::GORRINO | | Tue Nov 04 1986 08:14 | 8 |
| re 9:
Matt,
forget Named Data and elope to Florida with your new
love
Mauro
|
160.14 | And have you gotten your SLX replacement yet? | KIRK::JOHNSON | STS$VALUE = BSL$DO_WHAT_I_MEAN(); | Tue Nov 04 1986 09:19 | 7 |
| RE .13
If I do, it'll be all your fault!
(Mauro sold me the Olmo frame when he was visiting the U.S.)
MATT
|
160.15 | A difficult choise | CESARE::GORRINO | | Wed Nov 05 1986 03:40 | 1 |
| Is it better Olmo or Sannino ? This is my problem.
|