zeitgeist57 Posted January 26, 2010 Report Share Posted January 26, 2010 I have a 1996 GT Backwoods that nicktcsfsb[bfstcfsbsbtcbs] sold me, and it has been a faithful bicycle for the last 4-5 years. When I lived in Naples, I had it "overhauled" with a new gearshift, chain, tires, wheels brakes, etc. Most recently, I work downtown and have been using it everyday to get to work (rain or shine). As you could imagine, the salt/grit has not been kind to my bike, nor have I been in maintaining it save for a spray of Jig-A-Loo on moving parts to keep it lubed. Just yesterday and today, I noticed that when I was pushing hard, the rear end felt like it was skipping a tooth on the chain, or the free-wheel ratchet was going bad. Could it be a bent link in the chain? It doesn't happen with any sort of frequency, aside from when I'm pushing up an incline, or starting off from a standstill. Any help would be appreciated. Quote Link to comment Share on other sites More sharing options...
Skinner Posted January 26, 2010 Report Share Posted January 26, 2010 one of your shifter cables is stretched out just enough that under stress it causes the chain to try to shift gears. adjust your cables or if they are older may want to replace them. Quote Link to comment Share on other sites More sharing options...
AWW$HEEET Posted January 26, 2010 Report Share Posted January 26, 2010 Adjust derailleur screws on rear derailleur, or worn out cassette. Chain could be FUBAR too, there is a chain checker tool to check if its stretched. Usually its a combination of all this stuff... Quote Link to comment Share on other sites More sharing options...
Skinner Posted January 26, 2010 Report Share Posted January 26, 2010 If you want to have it checked out I have a friend that has a moblie repair business. He will come to your house or work pick up hte bike and bring it back. Quote Link to comment Share on other sites More sharing options...
AWW$HEEET Posted January 26, 2010 Report Share Posted January 26, 2010 If you want to have it checked out I have a friend that has a moblie repair business. He will come to your house or work pick up hte bike and bring it back. A Gear Higher dude? Quote Link to comment Share on other sites More sharing options...
Skinner Posted January 26, 2010 Report Share Posted January 26, 2010 A Gear Higher dude? Yup Rick Miller. Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted January 26, 2010 Author Report Share Posted January 26, 2010 Thanks for the help guys! I'll check on the cable thing. The rear derailleur is the culprit, and that's operated by a shift-grip on my right hand...I may be turning it forward when I stand up to pedal hard... I'll give you guys an update... Quote Link to comment Share on other sites More sharing options...
Skinner Posted January 26, 2010 Report Share Posted January 26, 2010 ditch the shift grips. Quote Link to comment Share on other sites More sharing options...
AWW$HEEET Posted January 26, 2010 Report Share Posted January 26, 2010 ditch the shift grips. +1, Unless they are Sram X0 Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted January 26, 2010 Author Report Share Posted January 26, 2010 Yeah...the Naples shop did it without telling me first. Hack job on "modifying" the existing grip to make it work... Quote Link to comment Share on other sites More sharing options...
3.1cutlass Posted January 26, 2010 Report Share Posted January 26, 2010 ditch the shift grips. Grip shift ftw! They break FAR less often then trigger shifters. I work in a shop, trust me. Anyways it could be a number of things. How old is the chain cassette? Have somebody put a checker on the chain so see how worn it is. If it is really worn out replace both the chain and cassette, if you don't it will create more problems. If it is within the limits of wear it could be the cassette that is worn. Has the deraileur been adjusted since the shifter was put on? I'm assuming that they replaced the cable when this was done. if you don't know how to adjust them i wouldn't start turning screws because thats not the problem at all. To adjust tension, turn either the barrel adjuster on the deraileur or on the shifter. It is a possibility that a link is frozen or bent but considering everything else that would be the last thing I would check. From what you describe it really sounds like a deraileur adjustment so I would start there. Quote Link to comment Share on other sites More sharing options...
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