THUMP-AIR reduction drive.

2.44:1 reduction is engineered to handle over 50 hp and is light weight, coming in at around 6 lbs complete.  Designed to fit the GX390 clone family of engines. Using a strong yet simple eccentric shaft for belt tension and a 16 rib poly v belt adustment the redustion drive provides many hours of trouble free operation All hardware used in this redrive is commonly available making it easy to maintain. Redrive is available in upright or downward configuration please specify when ordering.