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Old 01-18-2010, 10:03 PM   #9
doyle's Avatar
Joined: Jan 2004
Location: Off Piste
Oddometer: 23,853
Originally Posted by wrk2surf
I think it was kinigarder that said they were 730's ..
Basically the rule limits the bikes to a single cylinder for anything over 450cc, but technically the rules don't state an upper limit. In years past that limit for bikes was 700cc, but that is not in the regs any longer, hence the larger capacity to try to claw back any performance lost to the restrictor.
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