Best reviews of 😍 Mon Ster 1″ Shaft Series 30 Torque Converter Driver Clutch Assembly For Go-Karts & Mini Bikes ✨

Our 1″ shaft Series 30 torque converter driver clutch assembly for go-karts and mini bikes is a quality replacement item. This bore size will match the size of your horizontal engine drive shaft.

The 1/4″ shaft key is machined (or “broached”) directly into the side of the bore wall, so you cannot lose it during disassembly. Like all Series 30 torque converters, this unit is used with a 3/4″ asymmetrical belt (not included).

This torque converter driver clutch is what is known as a Series 30 clutch assembly. A Series 30 clutch may be discerned from the very similar Series 20 by its asymmetrical pulley. The sliding sheave will be conical while the stationary sheave will be almost flat in comparison. On a Series 20 pulley, the two sheaves will both be angled.

⚠ WARNING California Residents: Proposition 65 Warning

Bore size: 1″
Overall diameter: 4.9″ (125 mm)
Broached key width: 1/4″