This aluminum drift is machined to fit your inner cam bushing that goes into the blind on the primary side of the case as well as the outer cam bushing on the timing side of the case

Head Diameter: 40

these ignitions are micro-computer controlled

These will ONLY work with risers with 1/2"-20 thread

These brand new stock-style Triumph 650 c

#3123-20-P Smooth Head Allen Rocker Cover Mounting Kit 2017-Up Harley-Davidson Touring Models - Chrome Plated Subcategory_Brake Caliper Brackets This aluminum drift is machinedChrome plated smooth head allen screws and washers used to mount rocker covers on 2017 up Touring models. Made in Ohio, USA.