T.R | Title | User | Personal Name | Date | Lines |
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2227.1 | STI ... WHY ask WHY | NEMAIL::DELORIEA | I've got better things to do. | Thu Apr 02 1992 09:39 | 19 |
| I know that the 7 speed Dura Ace and the Ultegra rear spacers are the
same. I had a Ultegra rear derailleur and used both Dura-Ace and Ultegra
rear hubs and matching cassette/freewheels. The spacing is the same.
Now the new 8 speed has a new derailleur to handle the longer movement.
Maybe with the old 7 speed derailleur with a 7 speed cassette(Hyper-Glide)
it will work better...???
Lets just say you're better off waiting for the next generation of STI with
aero cables and lighter weight.
Tom
P.S. I have STI and can honestly say that if you don't have it and you get
beat in a sprint by someone that has STI then by all means go out and
buy a set. Otherwise if you're pack fodder.... forget it, it won't help
you go any faster. Although, it is a *nice* feature, it does add weight
to your bike, like fenders in the rain.
|
2227.2 | "PACK FODDER"???? | WMOIS::GIROUARD_C | | Thu Apr 02 1992 12:42 | 3 |
| Nasty....
Chip
|
2227.3 | | DECWET::SCOTT | Mikey Under Pressure | Thu Apr 02 1992 14:58 | 11 |
| Actually, I don't race. I just aspire to commute (building to 40 miles a day)
and get out on rides with friends and club groups. I just think that brake-shift
levers are cool. The weight doesn't both me--I carry 10-30 lbs of packs in *all*
my riding. (Not to mention that I'm at least 40 lbs overweight at present--now
shedding *that* weight will make a difference 8^).
I considered that the difference in derailleurs might have been the problem for
the guy in the bike shop, but since the cog spacing is the same, that didn't
seem to make sense.
-- Mike
|
2227.4 | STI upgrade | YNGSTR::BROWN | | Thu Apr 02 1992 17:20 | 11 |
| (.0 all over again)
I have a Trek 1200 aluminum frame with 6spd (circa '89) 105 components,
and was also worried about the dropout width in upgrading to STI,
but more than one bike shop I've been to says it's no problem.
Supposedly it would require a Shimano hyperglide hub/wheel with
appropriate dish, the 8spd cluster, rear deraillieur, and the levers.
Has anybody by any chance taken a Trek xx00 aluminum frame and upgraded
it to STI? Thanks, _kb
FWIW, I think the convenience of the STI outweighs (har, har) the gain
in ounces as well.
|
2227.5 | STI & fenders | NEMAIL::DELORIEA | I've got better things to do. | Fri Apr 03 1992 09:51 | 24 |
| True. STI levers are convenient. Very convenient. Touring with them is
most likely one of the next best reasons to get the levers. It's a
pain to shift while loaded down. BUT, I think it might be better to go with
bar end shifters or the new Grip-Shift shifter. They are made for
6 or 7 speed and are a lot lighter. If you were building up a bike
from a frame, and you were planning to go 8 speed from the start, then
STI makes sense.
If you plan to buy a bike in the next couple of years, then hold off
on the STI. Use the money towards getting the next bike. Complete
with 8-speed.
Here are some reasons I've noted that makes the STI shine.
o When riding in a pace line shifting goes unnoticed by the other riders
o When the pack changes speed you are never stuck in the wrong gear.
o Helps keep you from getting too squirrelly in the pace line while
trying to shift.
Tom_who_is_suffering_from_fixed_gear_withdrawal
|
2227.6 | else you might have to down shift even more :-( | NOVA::FISHER | Rdb/VMS Dinosaur | Fri Apr 03 1992 10:32 | 6 |
| Here's an STI foobar: While on the drops, if you down shift you must
be careful that your pushing the lever to the left does not also
squeeze the brake lever, as it might if you hook a finger around it
when you push.
ed
|
2227.7 | ONE MORE... | WMOIS::GIROUARD_C | | Fri Apr 03 1992 12:00 | 5 |
| One more "foobar"... They're not ERGOS!
:-)
I won't sign this one............
|
2227.8 | BAR-ENDS FOR TOURING | AKOCOA::FULLER | | Fri Apr 03 1992 17:01 | 5 |
| Advantage for touring can easily be accomplished with bar-ends.
Much cheaper, and can be put in non-index mode if the derailleur
screws up on a tour.
Steve
|
2227.9 | Spacing is different | DECWET::SCOTT | Mikey Under Pressure | Sun Apr 05 1992 16:57 | 9 |
| I just talked with a guy at one of the local bike shops and he looked it up
in a Shimano catalogue. The spacing between 7 and 8 speed *is* different
(3.1mm for 7-speed, 3.0 for 8-speed). Now, while you can adjust for this, he
thought that you'd probably be adjusting it all the time.
Wonder if the eight-speed cogs and spacers will fit on a 7-speed cassette?
Shimano probably thought of this and made sure it wouldn't work.
-- Mike
|
2227.10 | | LJOHUB::CRITZ | | Mon Apr 06 1992 10:23 | 7 |
| Latest VeloNews has (Volume 21, Number 5, Page 6) the
official reply from Wayne Stetina regarding various
comments in the mag and elsewhere about the very thing
you guys are discussing. I'd type it in but it's pretty
long and I feel lazy today. I know, what else is new?
Scott
|
2227.11 | Eschew Obfuscation. | NOVA::FISHER | Rdb/VMS Dinosaur | Mon Apr 06 1992 11:09 | 6 |
| Well, you could just say whether or not it's supposed to work!
my guess is that since the reply is long there's a lot of gibberish
from which one is expected to glean the needed information.
ed
|
2227.12 | | MASALA::GGOODMAN | Number 1 in a field of 1 | Mon Apr 06 1992 11:45 | 6 |
|
And we all know what came out of that publication 5 days ago, don't we?
Graham. :*)
|
2227.13 | I didn't see a problem | ODIXIE::RRODRIGUEZ | I think I know a short-cut | Mon Apr 06 1992 13:04 | 14 |
|
I test rode one of the new TREK 5300 last weekend. Basically
a purple Kestral. It comes standard with Ultegra STI and worked
fine. As far as the rear dropouts go, I imagine it is spaced to
take the Integrated-8 (Dura-Ace) because 1)all the new "high-end"
bikes seem to and 2) it is offered as an upgrade option.
Again, as far as I could tell on a 10 mile ride, it worked
fine, but who am I to judge? I'll never use it since I use the
large Scott Aero Bars and mount the brakes in the inverted position...
I couldn't resist those brake calipers though!
2
r
|
2227.14 | A little bit of the article ... | DECWET::SCOTT | Mikey Under Pressure | Mon Apr 06 1992 17:27 | 16 |
| A quote from Mr. Stetina's diatribe (which was issued in response to some reader
complaints about Shimano "upgrading" the designs of their components to imcompat-
ible ones from year to year):
_All_ Shimano rear derailleurs, road and mountain bike, have exactly
the same cable-stroke shift-lever compatibility with _one_ exception.
Dura-Ace uses shift-lever "clicks" spaced nearly 20 percent closer to-
gether than other Shimano levers, and therefore uses a rear derailleur
with a corresponding stroke.
This statement would make it seem that the STI shifters should be completely
compatible with 7-speed derailleurs.
Oh, well--I guess I'll just have to try it to find out.
-- Mike
|
2227.15 | STI Is 7-spd Compatible | BOOKIE::CROCKER | | Tue Apr 07 1992 14:37 | 72 |
| You might check out note 2084 for my somewhat emotional ;-) diatribe
on STI.
While 7-speed spacing may be 3.1mm and 8-spd may be 3.0, remember that
it's a tenth of a millimeter -- functionally you will find little if
any difference.
STI *will* work with 7-speed, provided that your levers and rear derailleur
are compatible (i.e., don't try Ultegra levers with a Dura-Ace
derailleur, or vice-versa...and be wary -- two well-established dealers
have told me that Ultegra levers will work with a Dura-Ace rear-d).
I've recently switched to 8-speed because my new frame had 130mm
spacing in back and I wanted the extra cog, but I still don't have a
cassette hub. I'm using Mavic hubs with a Regina cluster and an ATB
Sedis, and I'm doing fine -- not quite as smooth as Hyperglide, but I
still only miss one shift in a thousand.
I'll argue the point about bar-end shifters working as well as
STI, since I have both. I use bar-ends for winter riding, since
heavy gloves tend to get stuck in STI levers.
When I'm using clip-on aero bars, the shifters don't matter so much, since
I still have to take a hand off the clip-on to shift. Either STI or
bar-end beats reaching for the down-tube, which leaves me steering
with one hand -- something I'm quite capable of, but which I'd rather
not do if given the choice.
However, to shift with bar-ends, you still have to move your hand back
to the end of the bar. Partly for this reason I cut off the last 3cm
of each side of my bar before mounting the bar-ends.
With STI you can shift from the drops, or when riding on your
brakehoods. 8 times out of 10, you don't have to change hand position
to shift, which is where STI beats Ergo -- with the latter, your thumb
is in the wrong position when you're on the hoods, and you have to
compensate.
The STI really shines in climbs. When you fudge a shift at 7mph on
a 15% grade, it's a real effort to get back up to 7mph again. Loss of
momentum costs you position in a race, or it can cost you balance when
you're touring on a weighted bike.
With STI, even if you do fudge a shift, the correction can be instant,
because you've never taken your hand off the shift lever to return it
to its original position on the bars. The only way you can make this
true with bar-ends is if you climb in the drops.
During Killington I'd rather be carrying an extra 6 ounces up Brandon Gap
than miss a shift and watch 30 riders go by me as if I'm standing still
(which I am, for all intents and purposes).
"Read my lips..."
Stetina doesn't address function of STI with 7-speed in his letter to
VeloNews, probably because it's company line to say you have to have
8-speed Hyperglide with STI. Shimano must think that this increases their
sale of hyperglide hubs, when in fact it may be limiting sales of their STI
levers. Wayne's kind of a milky-mouth (hell of a rider though, and little
brother Dale was even better).
Shimano is a real strange mix of innovation, scrupulous testing (STI
was on the pro circuit for 2 years before being released to the market
-- one of the reasons I didn't hesitate to get it when I had the
money), hype (oval chainrings), arrogance, planned obsolescence, and
debatable service. They could learn something from Mavic or Campagnolo
on how to treat their market.
But Campy and Mavic are still playing catch-up when it comes to
development.
Justin
|
2227.16 | 105 SC STI | COLRDO::ALTHER | | Wed Aug 19 1992 19:02 | 8 |
|
I read in BICYCLING that Shimano plans on adding STI to their
105 SC line this fall. Since the 105 SC is a 7-speed, the new shifters
may solve the 7-speed to 8-speed upgrade dilema. I'd be interested
to know if Shimano will sell the shifters seperately or as a set
including calipers like the Ultegra STI.
Nick
|
2227.17 | 1/2 WAY MAY BE AN OPTION... | WMOIS::GIROUARD_C | | Thu Aug 20 1992 07:41 | 7 |
| Just a little FYI - I know you don't have to go to the 8spd
cassette set-up with Campy. You can install the Ergos and run
7spds... My guess is you could probably save some money if you
wanted with the Shimano stuff (even though you're still stuck
with buying the brakes).
Chip
|
2227.18 | Ultegra STI and 500EX? | NOVA::NALE | Sue Nale Mildrum | Wed Nov 11 1992 11:41 | 20 |
| Okay, I've read all the notes I could find on STI, but I still have questions.
My husband really, really, REALLY wants STI for Christmas. I'd really,
really, REALLY like to get it for him, but I'm wondering if he can use it
with his current setup. Here's the scoop:
I'd like to get the Ultegra 600 STI shifters/brake levers.
He's got:
Shimano 500 EX derailleurs
Shimano HG91 7-speed cassette
His bike is aluminum and I doubt the dropouts are wide enough for 8-speed,
so he'll be staying with 7-speed.
Will the Ultegra STI work w/the Shimano 500 EX derailleurs? Am I going to
have to buy him new derailleurs too?
Thanks,
Mrs. Claus
|
2227.19 | STI = 8 sp | STRATA::HUI | | Wed Nov 11 1992 14:23 | 13 |
| Sue,
I hate to tell you this but I am pretty sure the DA and Ultegra STI is only in
8 speeds. This means you need a 130mm rear hub spacing instead of the 126mm.
Since your husband bike is Aluminium, I would not recommend trying it.
Hope this will save you some money.
Also STI will be in the 105 group next year. You are looking at about $1200
for a Cannondale 105 STI next year.
Dave
|
2227.20 | | VO2MAX::DELORIEA | I've got better things to do. | Wed Nov 11 1992 15:09 | 16 |
| Sue,
I've heard of this unsupported way of making STI work on 7 speed.
Buy an eight speed cassette and take the spacers out and use them for the 7
speed spacers. They are only 2 tenths of a millimeter wider than normal 7 speed
spacers. The cogs MUST be hyperglide. If not the shifting will not be anything
like it should be.
OR go Campy.
I've heard Campy Ergo levers are much more forgiving in that they accept 7 speed
rear spacing as well as 8 speed. They are lighter and the cable routing is under
the tape.
Tom
|
2227.21 | | NOVA::FISHER | Rdb/VMS Dinosaur | Wed Nov 11 1992 15:35 | 7 |
| we do have Ultegra STI working on Lindas 7 spd Ultegra cassette and
deraileur. She's not 100% happy with the set up and it needs more
adjustment than my 8 on 8 setup.
I don't know about your deraileur's capability.
ed
|
2227.22 | | NOVA::NALE | Sue Nale Mildrum | Wed Nov 11 1992 17:04 | 9 |
|
Yikes! I think I'm going to have to forget it. Mark will be
majorly bummed. Now I'm down to SPD for the mtn bike, or a
new watch....
Thanks for the quick responses. You kept me from blowing a
lot of money on something he wouldn't be able to use!
Sue
|
2227.23 | It does work. | AIDEV::WOODRUFF | | Thu Nov 12 1992 15:06 | 15 |
|
I ran a 7 speed Ultegra setup with STI for over 1500 miles this
summer. It worked fine, though I did have to trim the front der.
in the middle of the cluster. They (Buchikas) set it up to lock out
the last position on the rear shifter. I then had them stretch the
frame to 130mm spacing, replace the body on the hub to take the 8
speed cassette, and redish the wheel. It works fine.
I just replaced the front der. with the new type (6401) and it works
much better (i.e. quicker shifts) and doesn't need the trimming like
the old one.
Even with the extra trimming, it is worth it.
garry.
|
2227.24 | the Batbike is now STI | TPFLOW::ALVIDREZ | | Mon Nov 30 1992 21:53 | 64 |
| I got this latest correspondence from Mike "Bat" Buchanan. He just converted
his Tesch from 7 speed to STI. Here is the story on his conversion:
---
First of all you can go 7-speed STI by buying the slimmer 8 speed spacers.
CycleCraft had them for $2.75 each. The cogs are the same, just the spacers
are different. I thought about that route but then decided to convert my
existing wheels. You don't need to buy new hubs or build whole new wheels.
The hub shell is the same (perhaps an oversight on Shamino's part). You need a
longer axel, an 8 speed freehub and a couple spacers. The wheel needs to be
slightly redished, about 2 mm. I had CycleCraft convert my two Ultegra rear
wheels and the total price cam to $80, so $40 per wheel is a lot better than a
whole new set of wheels. BTW, there is also no difference between a hyperglide
and non-hyperglide hub shell, so anyone who wants to stay at 7 speed but use
the new hyperglide cogs (it's hard to find non-hyperglide cogs anymore) you can
do that by just replacing the freehub. It is also possible to convert a
standard hub by using a Millard 8 speed freewheel although they said that this
puts requires even more dish.
Since I have nice Dura-Ace brakes I definitely didn't want new ones.
Fortunately they are beginning to sell just the levers. I got mine mail order
from a place called Howling Dog for $239. I also got a new cog set there as
well for $29.
Installation is pretty straight forward with one exception. The levers come
with new brake and derailluer cables. The brakes cables install exactly like
normal aero levers. The one possible problem for do-it-yourselfers is cutting
the cable which runs from the levers to where the old down tube levers used to
be. This is a serious piece of work and you should have the specially designed
tool to cut it. I didn't so I carefully used a fine blade hack saw and then
hand filed it smooth. This is definitely not a good idea. I guess I got away
with it but I feel pretty lucky and would not recommend it. Note that the
instructions don't say anything about cutting these cables.
Also note that a pre 7-speed ultegra rear derailluer does work fine. I had
heard some people say that they didn't have enough range. I didn't buy a new
one but was prepared to if it didn't work. But as I said, no problem. All
Shamino front derailluers are compatable so I kept the Dura-Ace.
So, for anyone who currently has an Ultegra bike the total cost to upgrade to
STI would be:
Rear wheel conversion $40, less if you do the work
STI levers $239
cogs $29
new bar tape $7
----
$315
I took this time to also replace the chain and well worn chain rings although
most people wouldn't have to do this.
How's it work you ask? Love it! I wish that they routed the cables unders the
tape like Campy. Actually that cable which I said is tough to cut would be
impossible to route under the tape, it's too stiff.
The brake hoods look different from the regular ones. The top/front is ball
shaped rather than coming to a point. It looks funny at first but I instantly
liked it better. It gives you a new position, you put your hands straight out,
palms down and put that "ball" right in your palm. I used to do this with my
old levers but could only stand it for a minute or two, the pointed hood was
not comfortable.
|