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Brand new Ultegra issue

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Brand new Ultegra issue

Old 03-24-17, 03:35 PM
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Dimx
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Brand new Ultegra issue

Hey guys, i just had a brand new Shimano Ultegra series installed on my Fuji Gran fondo 2,7. Today i took my first ride. Very satisfied apart from one thing. Some of you might have experienced the nasty noise the chain makes when you have a bad gear drop while riding uphill at a standing position. Well it happened to me while riding on a flat road and not while changing gears. At the same time I noticed, that when it hapenned i experienced a small gap in pedaling. I could describe it as losing power suddenly and then regain it.

What are yout thoughts on that? Is it because, the components are brand new,my mechanic did not fine tune the gears, or something else?
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Old 03-24-17, 03:55 PM
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Have you tried tuning the barrel adjuster?
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Old 03-24-17, 04:05 PM
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Originally Posted by Dimx View Post
Hey guys, i just had a brand new Shimano Ultegra series installed on my Fuji Gran fondo 2,7. Today i took my first ride. Very satisfied apart from one thing. Some of you might have experienced the nasty noise the chain makes when you have a bad gear drop while riding uphill at a standing position. Well it happened to me while riding on a flat road and not while changing gears. At the same time I noticed, that when it hapenned i experienced a small gap in pedaling. I could describe it as losing power suddenly and then regain it.

What are yout thoughts on that? Is it because, the components are brand new,my mechanic did not fine tune the gears, or something else?
Shouldn't happen with 6800 group.

The RD barrel nut may need to be tweaked a half twist one way or the other. This is normal on a newly assembled bike or newly installed group.

Also, check the chain, make sure there are no binding links and no pin sticking out farther than the rest.
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Old 03-24-17, 04:20 PM
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Did you get a new cassette with the chain? I would first suspect you might need to adjust the barrel adjuster though.
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Old 03-24-17, 04:50 PM
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if it just happened once, I wouldn't even worry about it.
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Old 03-24-17, 04:59 PM
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What 1,2,3,4 said....
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Old 03-24-17, 05:08 PM
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So many possibilities but check that chain is not on backwards.
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Old 03-24-17, 05:19 PM
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This is a new system, new cables. You have to adjust for stretch, not sure if cables stretch or not, or if it's the cable housing settling in with the ferrals etc. Either way, you may have to re-adjust them a few times as you ride more with new cables. And as said before, the chain is often installed wrong, Shimano chains are directional.
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Old 03-24-17, 06:38 PM
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Could be the chain was cut too long...
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