TECHLINE Harley-Davidson Motorcycle Transmissions

Part III: Shifter springs, shifter forks & other shifty things – by Donny Petersen This month in American Iron Harley magazine we continue with an excerpt from Chapter IX of Donny’s Unauthorized Technical Guide to Harley-Davidson 1936-Present, Volume III.  (Some content has been altered to fit AIM’s style and format.) The five-speed transmission shifter shaft […]

Harley Four-speed Transmissions

Locking setups, chain vs belt, and other comparisions – by Donny Petersen This month we have an excerpt From Chapter IX of Donny’s Unauthorized Technical Guide to Harley-Davidson 1936-Present, Volume III.  (Some content has been altered to fit American Iron Magazine’s style and format.) The locking methodology for the transmission sprocket or pulley evolved over […]