Shifters Still Slip After Tightening
05-06-07, 05:00 PM
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Shifters Still Slip After Tightening
I have this beautiful carbon handlebar by Deda and even after tightening the shifters, they still move under force from side to side. The area of clamping is shiny clearcoat. Is there anything I can do to prevent this movement? Most bars have a sandpaper type finish but this one (Deda Electa) does not.
05-06-07, 06:01 PM
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I keep old tubes to make shims out of them. If you cut a tube up, you can tighten down the shifter over it and the rubber might stick better. It's not elegant, but it's functional.
05-07-07, 05:17 AM
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2 comments:
1. Shifters should not be tightened so hard that they are completely immovable. That way, if your bike goes down, when the shifter just gets bumped it simply moves, instead of breaking. (Shifters are expensive to replace).
2. Extra care should be taken not to overtighten shifters on carbon handlebars. One of the most common causes of carbon handlebar failures is overtightening of shifters, which damages the carbon.
I'm not saying that shifters should be so loose that they flop around. Just take care not to overtighten them, especially on carbon handlebars.
Bob
1. Shifters should not be tightened so hard that they are completely immovable. That way, if your bike goes down, when the shifter just gets bumped it simply moves, instead of breaking. (Shifters are expensive to replace).
2. Extra care should be taken not to overtighten shifters on carbon handlebars. One of the most common causes of carbon handlebar failures is overtightening of shifters, which damages the carbon.
I'm not saying that shifters should be so loose that they flop around. Just take care not to overtighten them, especially on carbon handlebars.
Bob
05-07-07, 04:26 PM
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Originally Posted by Bobby Lex
2 comments:
1. Shifters should not be tightened so hard that they are completely immovable. That way, if your bike goes down, when the shifter just gets bumped it simply moves, instead of breaking. (Shifters are expensive to replace).
2. Extra care should be taken not to overtighten shifters on carbon handlebars. One of the most common causes of carbon handlebar failures is overtightening of shifters, which damages the carbon.
I'm not saying that shifters should be so loose that they flop around. Just take care not to overtighten them, especially on carbon handlebars.
Bob
1. Shifters should not be tightened so hard that they are completely immovable. That way, if your bike goes down, when the shifter just gets bumped it simply moves, instead of breaking. (Shifters are expensive to replace).
2. Extra care should be taken not to overtighten shifters on carbon handlebars. One of the most common causes of carbon handlebar failures is overtightening of shifters, which damages the carbon.
I'm not saying that shifters should be so loose that they flop around. Just take care not to overtighten them, especially on carbon handlebars.
Bob
Thanks! I got an email from Deda today and they said if needed use emory paper in the clamp area. They also said to torque to the recommended Campy manual specs. I will do the torque set first. But I agree with you on the above regarding if you crash.
