These are brand new 421cc 68mm big bore stock appearing Assassin cylinders. This kit is designed to be a bolt on, and will take a normal Banshee into the next level! These come ported to maximize your powerband, and make an insane amount of power. These cylinders are a new design from Driveline

This is a bolt on HUGE POWER upgrade for any year Yamaha Banshee 1987-2006 This is the legendary CHEETAH CUB SERVAL kit for your Banshee This NEW kit includes: CPI 68.00 mm monoblock cylinder Wiseco 573 pistons with wrist pins, circlips, and piston rings CNC stud extenders ARP 12 point ...

This is a bolt on HUGE POWER upgrade for any year Yamaha Banshee 1987-2006 This is the legendary CHEETAH CUB kit for your Banshee This NEW kit includes: CPI 68.00 mm monoblock cylinder Wiseco 573 pistons with wrist pins, circlips, and piston rings CNC stud extenders ARP 12 point base ...