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Old 04-01-2013, 11:26 PM
crassius crassius is offline
Motorized Bicycle Elite Member
Join Date: Sep 2012
Location: USA
Posts: 2,784
Default Re: Simulated Break In Period

a lot of it depends on how well the factory builds the engine - engines from china are lucky to run a week with or without break-in, but I believe they'll last longer if the internal burrs are worn in gently
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