Final Drive: Belt to chain conversion, Part 3

Chain, Chain, Chain

harley chain drive

On to mounting the chain!

Words and Photos: John Zamora

When last we left our hero, we'd just removed the inner primary from the bike. Now it's time to actually put the chain drive on. If your riding primarily involves going from point A to point B without much concern for how fast you get there, belt drives make the perfect method for harnessing the motor’s power and transferring it to the rear wheel. They are clean, quiet, and require very little adjustment. But if you have some serious power behind your punch or you need that instant response, a chain conversion might be necessary. Our resident test rider, Troy Hoff, was building a purpose-built stunt 1998 Dyna and needed a more snappy response to help with his drifting, wheelies, and burnouts. The conversion itself is relatively straightforward, using PBI offset front and rear sprockets along with a sturdy chain from RK Excel. For the wrenching, we took Troy’s bike to one of the best mechanics we know, T-Rod of T-Rod’s Speed Shop in Anaheim, California. Please note, this is intended to be an overview only. Always consult a manual for step-by-step directions.

Catch Troy in action with our video series.

harley chain drive

Using an impact, remove the locking transmission nut then the belt and sprocket.

Words and Photos: John Zamora

harley chain drive

Replace the transmission belt sprocket with the new main shaft offset sprocket to accept the new chain.

Words and Photos: John Zamora

harley chain drive

Replace the inner primary and reattach all the clips. Also replace the starter jackshaft that was removed earlier.

Words and Photos: John Zamora

harley chain drive

Replace the clutch and chain assembly and reattach the starter.

Words and Photos: John Zamora

harley chain drive

Tighten everything back to spec using a torque wrench for final tightening.

Words and Photos: John Zamora

harley chain drive

Adjust the clutch both at the clutch packs and the lever.

Words and Photos: John Zamora