Parkerized generator screws to install 3 brush generators with 1/4-24 threads to cases that have been drilled out for 5/16" bolts on 1936-57 Harley-Davidson Big Twins

A carefully sculpted shape

Its raw steel finish allows for easy customization

This model features a 11/16" Bore for single disc applications

ready for customization

Vintage 4 Piston Caliper 125 X 4R - Chrome Subcategory_Handlebar Hardware Parkerized generator screws to installPerformance Machine Vintage Calipers feature modern 4 piston braking technology styled after the original PM calipers that put them on the map in the 70's. Machined from lightweight billet aluminum with multiple cooling fins for optimum performance. Get their braking power from Performance Machine's proven four piston internals, but have taken their styling cues from our Dual Action Cast caliper CNC machined fins give the caliper its vintage style