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Jumpy Chain

Old 09-22-11, 02:19 PM
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Jumpy Chain

Single Speed, chain jumps off rear gear, other than the obvious about chain being loose, any thoughts on adjusting? Its a 54 - 16 ratio. - Ta.
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Old 09-22-11, 02:21 PM
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Is the chainline right?
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Old 09-22-11, 02:24 PM
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Originally Posted by prooftheory
Is the chainline right?
This.
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Old 09-22-11, 02:27 PM
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54X16 seems a bit of a jump ... may need more chain wrap on the rear cog. Have you considered perhaps dropping down up front a bit? Seems like a huge gear anyway. 1/8th or 3/32 DT?
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Old 09-22-11, 02:33 PM
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I didn't read the ridiculously high ratio before, that could definitely be the problem.
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Old 09-22-11, 02:36 PM
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my stab is 3/32"DT and flex in the front chainring is the culprit ...
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Old 09-24-11, 04:22 PM
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Maybe poor chain line plus a stuck link somewhere?
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Old 09-24-11, 04:36 PM
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Im using 52 x16 and with my chainline out it jumped. So it can be that factor.
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