Our mini-series on Gearing, sponsored by Sportbikewrench.com, continues with a look at the gearing changes required by two very different tracks that are back to back on the AMA schedule, Infineon Raceway in California and Road America in Wisconsin. 2 time AMA Supermoto Champion Chris Fillmore spent 2009 as a Daytona Sportbike rookie aboard a Yamaha R6. His crew chief, Geoff Cesmat, schooled us on this Infineon to Road America gearing challenge.
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