I bought a used bike that has Shimano Di2 11 speed. On the old drivetrain everything was smooth. I replaced the 2 front rings, crankset, chain, and cassette. I also put in a new wheelset. When replacing, I cleaned the rear derailleur (left it in place on the bike) and only took out the hanger and 2 jockeys wheels for cleaning.
After putting everything back in with the new drivetrain, the bike makes this tickling sound when paddling. What’s wrong? Did I mess something up like bending the rear hanger (how to verify), or do I need to index the Di2 (just guessing, not sure how to do it yet)?
Tickling sound after replacing the Di2 drivetrain
byu/xpisme inbikewrench
by xpisme
3 Comments
Is the chain on backwards? The letters on the chain should be readable from the drive side of the bike. It’s hard to tell from a video. Where did you get the parts? From a reputable shop or from an online retailer?
You might just need to adjust limit screws and indexing since you swapped wheels. The cassette is probably in a slightly different position if everything above checks out.
Sounds like it needs to be indexed. Di2 does need to be adjusted after setup, just like a mechanical mech it doesn’t know exactly how it’s sitting in relation to the cassette
Is there a stiff link? Or perhaps the quick-link is not locked completely.