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 Post subject: front mech shims
PostPosted: Mon Apr 11, 2011 9:26 pm 
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Joined: Mon Jun 14, 2010 11:27 pm
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Location: mid cheshire
i've just bought a new x-7 front mech for my new build (early 90's clockwork with a 28.6mm seat tube) the one i ordered claimed to be shimmed for 34.9, 31.8 & 28.6 but on getting it today, its only got the one shim fitted and its a couple of mm shy of clamping onto my tube properly.

is there a cheap universal shim available or a good home-bodge for such happenings (ice cream tub lid cut to shape and wrapped in insulating tape or other such randomness!) as i really don't want to send this damn thing back if i can help it as i'm hoping to do the build from start to finish on friday (assuming all the bits have landed in time)


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PostPosted: Mon Apr 11, 2011 10:08 pm 
Gold Trader / rb Rider / Special
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
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Location: Rurally close.
might be another shim on another mech you have?


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PostPosted: Mon Apr 11, 2011 11:06 pm 
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Joined: Sat Oct 03, 2009 2:37 pm
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Location: UK Southwest
I've been using a 31.8 mech on the 28.6 ovalised seatube on my winter/rain commuter hack for over a year now. I used a rubber shim from a light bracket and did it up nice and tight. It works fine and has never moved.


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PostPosted: Mon Apr 11, 2011 11:11 pm 
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Joined: Mon Jun 14, 2010 11:27 pm
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Location: mid cheshire
a couple of turns of inner tube then??


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