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  • I feel like I'm a bit undergeared on the Lea Valley road track. I'm currently running 42x13 to develop 84.9". Would trying a 12t sprocket be too big a jump to 92"? Should I try a 44t chainring instead to give 88.9"? I'm probably doing about 95rpm as my average speed is around 39kph.

  • Get a bigger chainring for sure, 48 would pair nicely with a 14t for racing and a 19t for daily riding.

  • Oh good one. They're close enough chain-length wise and I think I already have a 19t. 48t ring it is!

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