Chris Snell <[email hidden]> wrote in message
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Quoted message said:I have a stock trials bike I want to put a front derailleur on.
The chainstays are short (15.5"😉, the tire is fat, and I'm using an 8 speed chain.
There isn't much clearance between the seat tube and the tire, and the derailleur cage rubs the
rubber when in the granny.
Since I am only running a granny and middle, I have thought of modifying the cage, short enough to
prevent rub.
Anyone come up against this and have any suggestions?
Yes - I'm running a Nokian Gazzaloddi 2.6 on the rear, and the bottom end of the front mech cage
rubbed terribly on the tyre when in the granny ring.
I took the mech off and cut a section out of the inside end of the cage, then welded a small right
angled piece of steel over the breach to maintain its rigidity. Now, the mech cage clears the tyre
by enough to even cope with a slight buckled wheel, but still has full range.
Looks like this (if the text wrap doesn't skew it):
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Hope this helps!
Shaun aRe