• Increase displacement from 883cc to 1200cc
• Saves time because pistons are already fit to the cylinders - ready to assemble out of the box
• Cylinders are constructed from premium aluminum castings with cast-in iron liners
• No machining
• No re-balancing of 883cc flywheels
• No cylinder head modifications
• Big bore 3 1/2" cylinders
• 9.7:1 with stock 883cc heads
• Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
• Not honed.
• Made in the U.S.A.

Fits:1986-2015 Harley-Davidson Sportster XL Models