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Motorcycle (Moto Cross)


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Designed By Aroz

Shop > Motorcycle (Moto Cross) > Big Bore Kits


Honda CRF250R 290cc
#AH-7101-MG

Turn your 250 into a 290cc with a quick bolt on cylinder piston kit.

Kit includes aluminum cylinder with galvanic coating designed with wider water jackets, a forget piston with molybdenum coating, a special gaskets kit and easy to follow instructions. Bolt on installation. No machining required.

Fits 2004-2007

Price: $618.00



Athena YFZ490 Big Bore Kit
#AY-8601-MG

Complete 490cc big bore kit from Athena for your Yamaha YZ450F.

Kit includes aluminum cylinder with galvanic coating designed with wider water jackets, a forget piston with molybdenum coating, a special gaskets kit and easy to follow instructions. Bolt on installation. No machining required.

Fits 2003-2005

Price: $630.00



D&T Dyno YFZ290 Big Bore Kit
#ATYFZ290-MG

Complete 290cc big bore kit from D&T Dyno for your Yamaha YZ250F. Kit includes a brand new bored and nikasil plated cylinder, 12.5:1 compression 83mm JE piston and a cometic performance gasket set. NO CORE CHARGE! Bolt on installation, and no machining required!

Fits 2001-2007

Price: $440.00



Yamaha YZ250F 290cc Big Bore Cylinder Piston Kit
#AY-8401-MG

Turn your YZ250F into a 290cc in a couple of hours.

Kit includes aluminum cylinder with galvanic coating designed with wider water jackets, a forget piston with molybdenum coating, a special gaskets kit and easy to follow instructions. Bolt on installation. No machining required.

Fits 2001-2006

Price: $618.00



Suzuki RM-Z250 290cc Big Bore Cylinder Piston Kit
#AK-7301-MG

Turn your RM-Z250 into a 290cc in a couple of hours.

Kit includes aluminum cylinder with galvanic coating designed with wider water jackets, a forget piston with molybdenum coating, a special gaskets kit and easy to follow instructions. Bolt on installation. No machining required.

Fits 2004-2006

Price: $618.00



Kawasaki KXF250 290cc Big Bore Cylinder Piston Kit
#AK-7301-MG

Turn your KXF250 into a 290cc in a couple of hours.

Kit includes aluminum cylinder with galvanic coating designed with wider water jackets, a forget piston with molybdenum coating, a special gaskets kit and easy to follow instructions. Bolt on installation. No machining required.

Fits 2004-2006

Price: $618.00



Honda CRF450R 490cc Big Bore Cylinder and Piston Kit
#AH-6201-MG

Turn your 450 into a 490cc with a quick bolt on cylinder piston kit.

Kit includes aluminum cylinder with galvanic coating designed with wider water jackets, a forget piston with molybdenum coating, a special gaskets kit and easy to follow instructions. Bolt on installation. No machining required.

Fits 2002-2006

Price: $630.00