Fully assembled with ready to bolt on convenience. This entire clutch and flywheel package includes everything needed to upgrade or replace your existing Verto or Pre-Verto clutch and flywheel assembly with this Ultralight combo, weighs only 15.6 lbs total. Master kit includes, Ultralight flywheel 8.88 lbs and Ultralight backplate, clutch disc and orange diaphragm, clutch shouldered bolts, straps and star washers, throw out bearing, modified plunger with spacer, Heavy duty clutch release arm with clevis pin, slave cylinder and pushrod with clevis pin, stainless braided slave hose, anchor tabs and return spring, Heavy duty flywheel bolt kit with key and locktab. Available with 107 tooth ring gear for use with heavy duty JET Starter or 129 tooth for use with later, verto-type pre-engaged starter. This is as easy as it gets for bolt on convenience.