The 8mm rounded tooth belt is capable of transferring 40% more horsepower then the 1/2 pitch style. The 8mm belt system is used for both looks and performance. This belt is 2″ wide and works with TBS 8mm pulleys found on The Blower Shop's 192/250 blowers. 1280 8MM 50 (2″ WIDE) BELT (50.4″)