Thread: Chain Suck, part replacement
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Old 08-19-15 | 08:10 AM
  #22  
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cyccommute
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Originally Posted by martslc
"Zero wear", wow I was looking at the differences in the flat spot on the large ring compared to the small and thought is was toast. Large ring looks pointed compared to small. I guess I will look for burrs or bent teeth next.

Also if a link is stiff on the new chain. (BTW is this new chain which is for a "Ultegra CN-6701"group set and not a shimano 105 chain ok??

Thanks for the tip on the front derailleur.
Don't be fooled by teeth with different profiles. That's not a worn tooth but a design feature. The flatter top on some teeth is going to occur around the lift pin (it that little rivet in your last picture) and they aid in shifting. They make the shifts quicker and smoother.

Personally, I wouldn't say your derailer is low. It should have 2 to 3 mm of clearance over the teeth. That's about the thickness of a nickel. It doesn't look like you are far from that in your picture.
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