NEW: motorcycle racing quizzes
Started by Eric Kelcher, December 11, 2014, 09:12:21 AM
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Total Members Voted: 35
Voting closed: December 18, 2014, 09:12:21 AM
Quote from: apriliaman on December 11, 2014, 08:00:08 PMI think that 1mm bigger pistons that are used because your cylinder is worn out so stock size won't work anymore.2mm is for superbike engine build.