Transmission Belt Power Pulley 31 Tooth, 3% more RPM For Harley-Davidson

ANDREWS Transmission Belt Power Pulley 31 Tooth, 3% more RPM For 06-17 Dyna, 07-17 Softail, 07-16 Touring, Requires the rear axle to be adjusted towards the rear of the bike. If there is not enough axle adjustment for the new pulley, use a belt with more (or less) teeth than stock.