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Discussion Starter · #1 ·
My 10yo son has an entry level 24" bike we bought at Sun and Ski sports, and we started getting the chain coming off several times lately.

In returning it to the sprockets today, I noticed that the RD is putting very very little tension on the chain. Surprisingly the RD does say "Shimano" on it, so I am hoping there is maybe some way to adjust it to keep the chain from flopping around so much while we ride over roots and whatnot?

How to I adjust the RD for more tension?
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