Transmission Gear Set - 122mm Long - 110cc, 125cc Automatic with Reverse 100699 Our version 37 and 42

Our version 37 and 42 are identical

See pictures and measurements to best match your switch

We also have the version with the kick start lever hole

6-spade male plug with 6 wires

Transmission Gear Set - 122mm Long - 110cc, 125cc Automatic with Reverse 100699 Our version 37 and 42Chinese Transmission Gear Set 122mm Long Coolster 3125 A, 3125 R, 3125 XR 8 and the Taotao ATA125D, ATA135D and the 125 Sport Utility. This gear set fits 110cc and 125cc atvs, and go karts, with automatic transmissions with reverse. Fits many makes and models. Please look at pictures and descriptions before ordering Gear set description: Length: 122mm (4. 80 in) 2 Gears Large gear has 20 teeth OD: 39mm Small gear has 12 teeth OD: 25mm 6 splines on