ATHENA 293CC 72MM BIG BORE KIT P400485100042 YAMAHA YZ250 03-19
CYLINDER BORE STROKE DISPLACEMENT COMPRESSION RATIO WHEEL POWER
72 mm 72 mm 293.2 cc 15:1 33.8 kW / 45.3 HP / 7600 rpm
The Athena Big Bore kit is the missing source for increasing your motorcycles raw power.
- The included cylinder is constructed out of aluminum with a nickel-carbide coating to increase durability.
- The water jets have been widened for a higher flow rate, keeping the cylinder cool.
- Athena built a reliable cast piston that has been molybdenum-coated for high performance use and extended wear life.
- Includes a specially designed gasket kit to accommodate the big bore features.
- Each kit also includes easy-to-follow step-by-step installation instructions.
Kit includes: Cylinder head, cylinder, piston kit, gaskets, rings, and valve assembly kit.
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