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I have an 08 custom with the front o/d pulley installed but I want to put the 200 rear tire on it, I know the two wont work together but I was hoping someone would know what o/d percentage the tire gives vs the pulley. I want to change to that tire but I dont want to lose any reduction from removing the pulley. Do these two products offer the same reduction?
 

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Sharing some numbers others have posted that may help... Someone help if I'm figuring the % of difference incorrectly. ;) I did not calculate the RPM #'s myself, but the front pulley RPM listed does match what the scootworks website claims as well (the 5.9%).

Stock tire, stock pulley, for reference: RPM at 60 MPH = 3511
Stock tire, scootworks front pulley: RPM at 60 MPH = 3304 (roughly 5.9% change)
200/70-15 rear tire, stock pulley: RPM at 60 MPH = 3362 (roughly 4.3% change)

60 RPM difference @ 60 MPH, not just a HUGE difference.
 
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