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

These are brand new 421cc 68mm big bore stock appearing Assassin II cylinders. This is the updated, upgraded new version of one of the best performing cylinders on the market!  This kit is designed to be a bolt on, and will take a normal Banshee into the next level!  These come port

Repair Sleeve For CYB404 Vito's Monoblock Cylinder and 4.036 Inch Tall Stock Appearing 10 Port Nikasil Plated Cylinders Sleeve OD for installation 3.00 inches - 76mm Sleeve ID before boring 2.560 inches - 65mm 66 - 70 mm finish ...