Cometic Gasket C7136 Top End Gasket Kit - O-Ring drive-primary-drive-derby-covers Bolt-on big bore kits mean

Bolt-on big bore kits mean easy installation with no machining and no rebalancing

Ideal for most modern superbikes

2003 Suzuki RM60

Reduced smoking

2009-2014 Yamaha YZ250F

Cometic Gasket C7136 Top End Gasket Kit - O-Ring drive-primary-drive-derby-covers Bolt-on big bore kits meanHead gaskets are either copper or O ring type. All others are graphite. All top end gasket kits include everything needed to rebuild your top end. Cometic Gasket offers the latest in gasket technology. Gasket materials, design and manufacturing processes are constantly improving to match the high level of performance for todays powersports engines. When purchasing a Cometic Top End gasket kit, you can rest assured that every component will be the best