Baby Shoes Posted February 7, 2010 Share The rear derailer cable on my GT Force 1 MB has now broken for the fourth time.Has anyone else had the same problem? My bike is less than a year old. Link to comment Share on other sites More sharing options...
Johan Bornman Posted February 7, 2010 Share Where did it break? Under what circumstances?No bike will have such an inherent flaw that makes the derailer cable break. If this were true, the gears won't shift.Therefore something else is wrong. Post a photo. Link to comment Share on other sites More sharing options...
Baby Shoes Posted February 7, 2010 Share The cable frays at the clamping mechanism.The distance between the fixed point of the cable and the clamping section appears to be too short,creating a bending movement on the cable.I have not noted that it breaks under any specific circumstance. Link to comment Share on other sites More sharing options...
Johan Bornman Posted February 7, 2010 Share We need even more information to picture your problem. Does it break off at the anchor bolt, one strand at a time? Or does it break off somewhere between the anchor bolt and where it comes out the cable/barrel adjuster. That gap is not user-adjustable and is a pre-set function of the derailer. Your cable is breaking, most likely, 'cause the anchor bolt is too tight. Link to comment Share on other sites More sharing options...
Baby Shoes Posted February 8, 2010 Share It breaks at the anchor bolt one strand at a time.If I loosen the anchor bolt,will the cable not slip? Link to comment Share on other sites More sharing options...
Johan Bornman Posted February 8, 2010 Share The anchor bolt needn't be as tight as some people make it. For instance, there is no need to tighten it until the cable is squashed flat. I think your problem is one of excessive force. Link to comment Share on other sites More sharing options...
leet22 Posted February 8, 2010 Share My scott does the same. Replaced the cable 2 weeks ago and is fraying again. Will replace and not tighten as much this time. Link to comment Share on other sites More sharing options...
techguy Posted February 8, 2010 Share I agree with JB its a fitment error... Link to comment Share on other sites More sharing options...
Baby Shoes Posted February 8, 2010 Share Thank you for the advise - I will try your suggestion and report back on the outcome. Link to comment Share on other sites More sharing options...
SURFER Posted February 8, 2010 Share Had the same with my Scott Link to comment Share on other sites More sharing options...
Try try Tri Posted February 23, 2016 Share Did anyone have better results with a not so tight bolt. Have a Scott and changing cables monthly. Link to comment Share on other sites More sharing options...
Skinnyone Posted February 23, 2016 Share Ask yourself why is it happening? what is the common denominator? is it your LBS changing the cable every time - if so is it their way of making money out of your wash and lube? Is the cable snagging/breaking in the same place? if so why? then you may come up with a solution to the problem....as mentioned above there cannot (or very highly unlikely) be an inherent fault with your bike or the manufacture thereof to cause the issue... Link to comment Share on other sites More sharing options...
BaGearA Posted February 23, 2016 Share check the bolt very carefully most of the time there is a slot in the plate where the cable needs to sit , its very rare that the cable should just be clamped between two flat plates Link to comment Share on other sites More sharing options...
David Marshall Posted February 23, 2016 Share Your cables only need to be tightened to 4 or 5 nm. Use a pre set 5 or torque wrench. That said the new 11 speed Shimano road FD cables need to be 7 nm - and pulled tight tight! Not nice to set up. Link to comment Share on other sites More sharing options...
Ampandy Posted February 26, 2016 Share Check the cable routing at the anchor bolt. If possible route it the other way around the bolt. Could be shearing off because of wrong routing. Link to comment Share on other sites More sharing options...
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