>
> *<Adjusting the cable tension with the barrel adjuster only moves the 
> problem from the three lowest gears to the middle gears>*

 

> That points to the hanger alignment, or play in the the derailleur's 
> parallelogram pivots.

 

The derailleur's mounting bolt can get slightly slightly bent and produce 
> similar behavior too. You can remove the C-clip and take the bolt out to 
> examine while turned into the hanger threads, watching for a  wobble as 
> threaded in. A new RD is usually the best fix.Sometimes good luck in a bike 
> shop's recycling bin will net a similar RD that was tossed of other worse 
> failures that still has a good bolt still. 

 
Andy Cheatham
Pittsburgh 

On Friday, July 3, 2015 at 9:47:26 AM UTC-4, Tim wrote:
>
> Steve,everything in the drivetrain is (was before three brevets) brand 
> new. Cables, housing, cassette, chain, chain rings. Only the derailer and 
> shifters were not new. The problem still persisted. I took it to a good LBS 
> for a tune up and had them check for a bent hanger. Adjusting the cable 
> tension with the barrel adjuster only moves the problem from the three 
> lowest gears to the middle gears. Lungimsam, the D rings on the Silvers are 
> tight and I used beeswax. 

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