Truett & Osborn "WR" 45-XL FLYWHEELS for use in standard 1937 - 1973 Harley 45 Solo & Servi-Car motors Stock type 45 Flywheels, but specially machined for '57-'81 Sportster XL Rod Set XL Rods with 1-1/4" dia Crank Pin & Bearings are same length, but way more beefy than Stock 45 Bolt-In Flywheels still use stock 45 Mainshafts AVAILABLE STROKES: STOCK 3-13/16" 4-7/16" 4-1/2" 4-5/8"
Rod Length 7.4375” center to center & .791" Piston Pin diameter are same as stock 45
Truett & Osborn "WR" 45-XL FLYWHEELS for use in standard 1937 - 1973 Harley 45 Solo & Servi-Car motors Stock type 45 Flywheels, but specially machined for '57-'81 Sportster XL Rod Set XL Rods with 1-1/4" dia Crank Pin & Bearings are same length, but way more beefy than Stock 45 Bolt-In Flywheels still use stock 45 Mainshafts AVAILABLE STROKES: STOCK 3-13/16" 4-7/16" 4-1/2" 4-5/8"
Rod Length 7.4375” center to center & .791" Piston Pin diameter are same as stock 45
