1-1/8" OD Drive Roller with 12 mm x 1.50 tpi right hand male threads

Drive Roller with 1-1/8" OD, 5/8" bearing surface on both ends with the 12 mm x 1.50 male right hand threads.

This Drive roller is Heat Treated with black oxide.  Uses 5/8" bearings on both ends.

Below is a lot of good info and fast links:

This can be used with both the smaller 54mm & the larger 78mm Clutch Drum with the 12mm x 1.5 right hand female threads. 

The clutch drum is Not included.  If you need one click on the link below.

Clutch Drum 2-1/8" or 54 mm with 12mm x 1.50 threads

78 mm ID Clutch Drum - Bell with 12mm x 1.50 female right hand threads


Engine Spacers:  This is the part that fits between the engine and the Black Alum. Channel where the four bolts attach the channel to the engine.

78mm Kits use:  Spacer Engine for all our Friction Drive kits 76 mm Clutch Rotor

54mm Kits use:  Engine Spacer 3" OD x .70" Tall for the 54 mm friction drive kit

If you need Bearings click on one the links below:

Standard Quality Bearing Made In China:
5/8" ID x 1-3/8" OD x 7/16" wide with retaining ring High Speed Ball Bearing 49950-2HR

How to install a Drive Roller with a 54 mm ID Clutch Drum

How to install a Drive Roller with a 78 mm ID Clutch Drum