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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 05-26-05, 01:09 AM   #1
gmason
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Campa Centaur triple: 50/40/30 to 50/39/26

This is the plan to help the wife on the bigger climbs here. In fact, she has been running a 28 (Salsa) in place of the 30 for a while with no issues. The two new TA rings arrive soon.

I tried to find a 38, but no joy. Though the capacity exceeds Campa's recommendation, I think that will be OK. My only real concern is the dynamic of the 39 to 26 shift - do it with care, I suspect.

Any comments?

Thanks...Gary
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Old 05-26-05, 07:03 AM   #2
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Quote:
Originally Posted by gmason
This is the plan to help the wife on the bigger climbs here. In fact, she has been running a 28 (Salsa) in place of the 30 for a while with no issues. The two new TA rings arrive soon.

I tried to find a 38, but no joy. Though the capacity exceeds Campa's recommendation, I think that will be OK. My only real concern is the dynamic of the 39 to 26 shift - do it with care, I suspect.

Any comments?

Thanks...Gary
A 26/42 works with shimano STI.
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Old 05-26-05, 01:35 PM   #3
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On my mountain bike, which has a SunTour XC6000 front derailleur, I successfully ran the same 16-tooth bottom drop to which Sydney alludes with a Sugino 24-40-48 combination. As long as I shifted in a careful, low-torque, old-school fashion, it never gave me any trouble, although I could jam things up a bit by moving the lever too rapidly and/or by pressing too hard on the pedals while upshifting.
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Old 05-26-05, 01:44 PM   #4
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I've got a 52 42 28 on my cross, and it shifts fine. I am using a friction shifter though, so YRMV.
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