Bicycle Mechanics - Broken SRAM grip shift?
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08-16-06, 05:54 PM
I was adjusting my front derailer, and I managed to rotate the left side grip shift past 1, and it seems I may have snapped whatever stop is in place to keep the shifter from indexing past the 1. Now it just free spins from a bit before the 1 to about 1" past it.
I'm trying to get this bike fixed up so I can sell it, so if I can get some advice on what the problem might be that would be great. I would prefer not to buy another if I can help it, obviously.
The grip shift is a cheap SRAM 3.0.
08-16-06, 06:42 PM
Does it still index for "2" and "3"? It sounds like something inside the shifter broke. I'll bet you need to get a new one.
I'm not familiar with SRAM 3.0 but I have broken SRAM MRX and MRX Comp rear shifters. On the MRX, the plastic "backstop" broke and the spring clip dislodged and I had no indexing and nothing preventing the shifter going all they way to the smallest cog. I tried superglue but it was just not strong enough. So I bought an MRX Comp shifter. That broke almost immediately. The MRX Comp has a plastic ring that holds the spring clip and this plastic ring broke. Indexing still 'worked' but the broken plastic ring would deform from pressure and there was a lot of play and indexing was very light ("spontaneous" shifts when hitting bumps). I was able to reinforce the plastic ring so it wouldn't deform so much by wrapping thread around it about 20 times and it works OK now.
08-16-06, 07:50 PM
Yes, it will still inded for 2 & 3. It might even inded to 1, with a good bit of adjustment, but it would still free spin. I would not worry about it if I was going to ride it myself, but I can't sell it that way, is my problem.
Probably just need to pry open the wallet again and buy a new grip shift and be done with it I guess.
Thank you very much, BTW. I am thinking that maybe SRAM grip shifts break pretty easily, is that correct?
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