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I switch to Qring with my Etap Quarq crank. I cut it big qring for fit (Quarq was on the way) and switch to a new chainring bolt for hidden bolt. the problem I have now is when I’m shifting from the front big chainring to small. It is not on and the chain does drop to the small chain ring just on top of the teeth. it takes some easy pedaling to get it on. I have 11-28 at back. From 11 to 19 teeth all does this, but after 19 to 28 it works fine. Any idea how do I fix this?

  • Higher chain tension when in 20t sprockets and larger explain why it problem does not occur in lower gears. – Argenti Apparatus Jul 14 at 16:32

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