Replacement 45" Flathead piston kit. +.060" - 29-73 45" (750cc) Side Valves (NU) 578323 Designed to give you years

Designed to give you years of hassle free riding fun due to the unmatched simplicity and great fit

With smooth inside corners to prevent wiring damage and ease in wiring pull-through

Some models it will fit include Bonneville

Will not work with air assist or cartridge fork tubes

Replacement 45" Flathead piston kit. +.060" - 29-73 45" (750cc) Side Valves (NU) 578323 Designed to give you yearsCast aluminum OEM style pistons for a stock rebuild. Wil fit all 29 73 45" (750cc) Flathead models. Pistons include wrist pins, retainers and piston rings. Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install & make adjustments as required. The rider must follow