Description 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). Specifications Bore size: 1" Overall diameter: 4-7/8" Broached key width: 1/4"
Returns Accepted for this item if it's within 30 Days