Bike Forums - View Single Post - Front Deraileur Clamp help

08-12-04 | 10:14 AM

#4

sydney

Senior Member

Joined: Jan 2004

Posts: 9,428

Likes: 2

Quote:

Originally Posted by cibai

One more thing, I am assuming now that I need the 1 1/4 diameter clamp instead of the 1 1/8 diameter clamp? I guess performance only carries the latter. Is my seat tube on a trek 1200 1 1/4?
so... now before I make another mistake, what is the difference between these two deraileurs except the price:

https://shop.sunrisecyclery.com/item/10389/

and the cheaper seemingly the same:

https://shop.sunrisecyclery.com/item/10833/

You better measure it before you make another mistake.Many seattubes are 13/8" in diameter. If that's the case, you need a braze on
FD with 13/8" braze on adapter clamp, as shimano does not make a true clamp type FD in a 13/8" diameter.

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