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2 votes

Is it safe to move a di2 derailleur manually?

I tried pushing my R8150 Di2 derailleurs with quite some force and neither of them move. The servo's gearbox doesn't seem to be backdriveable.
Michael's user avatar
  • 28.3k
1 vote

New carbon road bike - scratches discovered on chain stay

Either caused by chain slap (see other answers, get a chain stay protection) or maybe by being really careless when installing the rear wheel. When you take out the rear wheel, make sure you are in ...
Michael's user avatar
  • 28.3k
-1 votes

New carbon road bike - scratches discovered on chain stay

This is from removing the rear wheel. Modern road bikes have this issue, maybe because of the the sharpness of 11 and 12 speed chain links. Trek for example have a sticker on the chain stay advising ...
Rob Parkin's user avatar

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