Athena P400210100067 290cc Big Bore Cylinder Kit (85mm Bore) - Co-Fused Steel Liner Forged Piston Upgrade, Converts 250cc to 289cc, Compatible with Honda CRF250R & CRF250RX 2018-2021 DOMANKI and speed in the most

and speed in the most demanding metal cutting applications – without a lubricant

The weather-resistant nylon sleeve and reinforced oval crossbar lock head ensure durability and reliability in all conditions

The dual gear counter balance mechanism provides up to 4x lower vibration than traditional reciprocating saws

specifically engineered for 250

The double fiberglass reinforcement meets ANSI safety standards and prevents premature breakage under high-speed operation (max 13

Athena P400210100067 290cc Big Bore Cylinder Kit (85mm Bore) - Co-Fused Steel Liner Forged Piston Upgrade, Converts 250cc to 289cc, Compatible with Honda CRF250R & CRF250RX 2018-2021 DOMANKI and speed in the mostUPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low end torque, and unmatched acceleration from your 250cc four stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400210100067), a premium race proven package engineered in Italy to seamlessly convert your factory setup into a high revving, high output 290cc (289cc actual) powerhouse. Utilizing an innovative co fusion production process that