Rear Pulley or Sprocket Bolts - Chrome Allen Head. 7/16in.-20 x 1.25in. STD-MC-OPS3 * Compression ratio w/S&S 89cc

* Compression ratio w/S&S 89cc heads = 9

* Supplied wiring is 100% Plug & Play

but WD-40's combination of aerosol propellant and organic-based lubricant is perfect for sliding tight grips onto clean metal tubes

Main Jet Assortment for precision tuning #150

* Softail models 2011-2020

Rear Pulley or Sprocket Bolts - Chrome Allen Head. 7/16in.-20 x 1.25in. STD-MC-OPS3 * Compression ratio w/S&S 89ccFeatures & Benefits: * Custom Look, Chrome Plated Polished Allen Head Bolts & Washers. * Typically Fits Big Twin & Sportster 1973 1990 with Chain Drive Spoke Rear Wheel. Tech Tip: * UNF 7 16 20 x 1 1 4" Long Allen Bolts Proudly Made in the USA by Colony Machine !