Support road.cc

Like this site? Help us to make it better.

forum
road.cc bike forum

Derailleur help

by Gkam84
Thu, Jul 14, 2011 21:59
5

Just had an email from a mate who seems to think i know what i'm talking about 26

Right, he's bent his Sora (i think) front derailleur, but cant seem to find a replacement because he's confused and has left me in the same state

He tells me that the seat tube is 41mm, but i've never heard of a derailleur that size (its band on btw) 39 you've got 31.8 and 34.9 right?

So what do i suggest? he's in remote Scotland so a LBS isn't an option, thats why he's emailing me about it, but got me stumped

Any ideas?

If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.

Add new comment

5 comments

Avatar
Gkam84 | 13 years ago
0 likes

Ok, so his bike is "abnormal" 19

Its got a combo of Sora and 105 apart from the front mech, which turns out to be a Sram XX 38.2mm and he tells me that there is an indent and thats the only reason it fits 7

I thought the Sram XX was a mountain bike derailleur? do they work ok on road bikes?

If they work fine, then ok, but are their any road derailleurs at that size?

Avatar
matt637 | 13 years ago
0 likes

Hi there,
No you can't always take the mech off the clamp (if ever?). Those are the two most common clamp sizes, i'm sure there are others but i would surprised if Sora was anything other than the norm, also it would be one heck of an oversized piece of framework!

Avatar
Gkam84 | 13 years ago
0 likes

Deffo not braze on

On the inside of the clamp is the size?

Would buying a derailleur and just putting it on the old clamp not work? I dont want him to go taking to much to bits because all that'll happen is i'll have to go up there and put it together

Avatar
jmeakin | 13 years ago
0 likes

41mm does sound odd, if he takes off the old clamp shouldn't it be stamped on the inside?

Avatar
Aidan | 13 years ago
0 likes

Could be a braze on.

Latest Comments