Gyrobob Serious Thumper Offline Posers ain't motorcyclists Posts: 2571 Newnan, GA Gender:

Re: WAR -- Belt vs. Chain (facts & sources) Reply #30 - 12/16/12 at 11:22:55   One of the reasons the belt has such a large dorky looking pulley on the back is because there has to be a gear reduction from the drive pulley to the driven pulley, and the minimum pulley size for belts like these is about 3.5 to 4 inches. It would seem that if manufacturers would change the gear ratios in the transmission such that the drive pulley were geared lower (meaning the output shaft were turning slower for a given gear at a given rpm) the driven pulley on the rear wheel could be smaller, therefore not so dorky looking, and even lighter for the unsprung weight issue.   Not needing such a large gear reduction for the final drive would result in smaller lighter rear wheel pulleys.

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