OTT’s mini-series on Gearing continues with a look at the gearing changes required by two very different tracks that were back to back on the 2009 AMA schedule, Infineon Raceway in California and Road America in Wisconsin. OTT talks to the man who has been there for all seven of Mat Mladin’s AMA Superbike Championships, Crew Chief Peter Doyle, about gearing a motorcycle for two tracks. Be sure to check out other Roadracing World feature videos. Video provided by ~http://www.OnTheThrottle.tv~ and ~www.YouTube.com~