|
|
 Up |
|
  |
Author: maury.markowitzmaury.markowitz Date: Jul 10, 2006 20:33
I'm considering getting a Roubaix after a 200 k I did on the weekend.
The particular model I was on (a demo) had the Ultegra 10-spd triple
set on it, although the front was FSA.
I've read a lot here about double vs triple, and from what I can see
there doesn't seem to be a huge downside to the triple. Some shifting
issues, but most suggest that's only an issue for racers (??). There
were also some doubts about the Ultegra shifting at the front, skipping
the 39 and going to the 30, and I DID have that happen even on my demo
ride.
I've put about 10-12k on my current Trek 5000, which is stock
Ultegra/105 9-speed, with a 52-39 up front and 12-25 in the back. I'm
in Toronto, so I rarely even get off the 52, even the 'climbs' in-town
I can do 52-23/25. It's only when I get out of town I see any use for
the 39, and generally I have lots of room to play.
BUT, I also periodically travel for biking, and when I do it's
invariably into something hilly (Icefields Parkway and the Cabot Trail
were my last two trips, this year is the Golden Triangle).
|
| Show full article (1.50Kb) |
|
| | 18 Comments |
|
|
Author: russellseaton1russellseaton1 Date: Jul 10, 2006 21:46
> I'm considering getting a Roubaix after a 200 k I did on the weekend.
> The particular model I was on (a demo) had the Ultegra 10-spd triple
> set on it, although the front was FSA.
>
> I've read a lot here about double vs triple, and from what I can see
> there doesn't seem to be a huge downside to the triple. Some shifting
> issues, but most suggest that's only an issue for racers (??). There
> were also some doubts about the Ultegra shifting at the front, skipping
> the 39 and going to the 30, and I DID have that happen even on my demo
> ride.
>
> I've put about 10-12k on my current Trek 5000, which is stock
> Ultegra/105 9-speed, with a 52-39 up front and 12-25 in the back. I'm
> in Toronto, so I rarely even get off the 52, even the 'climbs' in-town
> I can do 52-23/25. It's only when I get out of town I see any use for
> the 39, and generally I have lots of room to play.
>
> BUT, I also periodically travel for biking, and when I do it's
> invariably into something hilly (Icefields Parkway and the Cabot Trail ...
|
| Show full article (5.79Kb) |
|
| | 1 Comment |
|
|
Author: maury.markowitzmaury.markowitz Date: Jul 10, 2006 22:09
> are lots of STI shifted triple bikes on the road. Doubtful its too
> much of a problem since everyone is not running around replacing their
> triples with doubles.
True...
> You can also easily and for free set the limit screw on the front
> derailleur so it cannot shift the chain to the inner ring. No chance
> of overshifting then. Then when going to hilly areas, reset the limit
> screw so you can shift down to the inner ring. No shifting downside to
> the triple crankset if you play with the limit screw.
Right, so I guess this is the crux of the issue. In this case I
_assume_ that the outer ring, a 53 in this case, is farther from the BB
than it would be in a double. Does this make any difference? I see a
lot of talk about the chain line, but I'm not sure that means anything
in the real world.
> You cannot really change chainrings to get lower gears. Your 130mm bcd
> crank can only take down to a 38 tooth chainring.
Ahhh.
|
| Show full article (2.15Kb) |
| no comments |
|
|
Author: Bob FlumereBob Flumere Date: Jul 10, 2006 22:40
On 10 Jul 2006 11:33:04 -0700, maury.markowitz@ gmail.com wrote:
>I'm considering getting a Roubaix after a 200 k I did on the weekend.
>The particular model I was on (a demo) had the Ultegra 10-spd triple
>set on it, although the front was FSA.
>
>I've read a lot here...
|
| Show full article (3.93Kb) |
| no comments |
|
|
Author: russellseaton1russellseaton1 Date: Jul 10, 2006 22:42
>> are lots of STI shifted triple bikes on the road. Doubtful its too
>> much of a problem since everyone is not running around replacing their
>> triples with doubles.
>
> True...
>
>> You can also easily and for free set the limit screw on the front
>> derailleur so it cannot shift the chain to the inner ring. No chance
>> of overshifting then. Then when going to hilly areas, reset the limit
>> screw so you can shift down to the inner ring. No shifting downside to
>> the triple crankset if you play with the limit screw.
>
> Right, so I guess this is the crux of the issue. In this case I
> _assume_ that the outer ring, a 53 in this case, is farther from the BB
> than it would be in a double. Does this make any difference...
|
| Show full article (5.58Kb) |
| no comments |
|
|
Author: Paul CasselPaul Cassel Date: Jul 11, 2006 00:58
> I'm considering getting a Roubaix after a 200 k I did on the weekend.
> The particular model I was on (a demo) had the Ultegra 10-spd triple
> set on it, although the front was FSA.
>
> I've read a lot here about double vs triple, and from what I can see
> there doesn't seem to be a huge downside to the triple. Some shifting
> issues, but most suggest that's only an issue for racers (??). There
> were also some doubts about the Ultegra shifting at the front, skipping
> the 39 and going to the 30, and I DID have that happen even on my demo
> ride.
>
I would tend to agree that even if you got the sometimes skip to the 30
from the 53, it'd be a minor nuisance unless you were racing. It may be
something that needs adjusting. My friend who uses a triple (Campag)
says this won't occur if his bike is properly setup. I'd guess that the
Shimano is of equal quality so that this won't be an issue when you own
the bike.
|
| Show full article (1.90Kb) |
| no comments |
|
|
Author: catzz66catzz66 Date: Jul 11, 2006 01:00
A triple is nice to have when you need it. Unless you do all your
riding in a semi-flat terrain, it could be worth it for those occasions
when you need the third ring. I took my old two ring bike with me on
vacation and wished for the third ring a few times. It would have been
a lot easier on my knees and I would not have been as limited in where I
could comfortably ride if I'd brought the other bike.
|
| |
| no comments |
|
|
Author: alohaaloha Date: Jul 11, 2006 07:14
triple's were 'invented' by the french public
it seems to be an issue of shape and talent really
if the tour de france is ridden on doubles
and you realize how steep the Alps are compared to the Rockies
...
the sensible biker chooses a triple if he want to peddle a steady pace
.. and not walk
mt
On 10 Jul 2006 11:33:04 -0700, maury.markowitz@ gmail.com wrote:
>I'm considering getting a Roubaix after a 200 k I did on the weekend.
>The particular model I was on (a demo) had the Ultegra 10-spd triple
>set on it, although the front was FSA.
>
>I've read a lot here...
|
| Show full article (1.91Kb) |
| no comments |
|
|
Author: Earl BollingerEarl Bollinger Date: Jul 11, 2006 12:38
> I'm considering getting a Roubaix after a 200 k I did on the weekend.
> The particular model I was on (a demo) had the Ultegra 10-spd triple
> set on it, although the front was FSA.
>
> I've read a lot here about double vs triple, and from what I can see
> there doesn't seem to be a huge downside to the triple. Some shifting
> issues, but most suggest that's only an issue for racers (??). There
> were also some doubts about the Ultegra shifting at the front, skipping
> the 39 and going to the 30, and I DID have that happen even on my demo
> ride.
>
> I've put about 10-12k on my current Trek 5000, which is stock
> Ultegra/105 9-speed, with a 52-39 up front and 12-25 in the back. I'm
> in Toronto, so I rarely even get off the 52, even the 'climbs' in-town
> I can do 52-23/25. It's only when I get out of town I see any use for
> the 39, and generally I have lots of room to play.
>
> BUT, I also periodically travel for biking, and when I do it's ...
|
| Show full article (2.65Kb) |
| no comments |
|
|
|
|
|
Author: Jan BrittensonJan Brittenson Date: Jul 13, 2006 19:18
> There
> were also some doubts about the Ultegra shifting at the front, skipping
> the 39 and going to the 30, and I DID have that happen even on my demo
> ride.
A triple is sensitive to cable stretch, so on a new bike you'll
have to retighten the front cable a little more frequently than
on a double. A double obviously only needs to go between the
two limits.
|
| |
| no comments |
|
|
|
|
