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Chain length sizing for bicycles with derailleurs

Optimal chain length for bicycles with a derailleur (multi-geared bicycles)

Updated: 15/09/2020. It is often asked: what is an optimal chain length for a bicycle with derailleurs? Should a new chain be shortened and how much? That is answered in this post. For single speed bicycles (or bikes with internal gear hubs), see: Determining optimal single speed chain length. 1. Bicycle drive chain length A … Read more