Ceramic 63mm Big Bore Kit - 13.5:1 Forged Piston - All KLX140 CRF150F Carb & Fuel : 12V Monkey · Gorilla

: 12V Monkey · Gorilla (Z50J-2000001~ / AB27-1000001~1899999)

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95 mm bolt circle with 6mm holes (x4)

Ceramic 63mm Big Bore Kit - 13.5:1 Forged Piston - All KLX140 CRF150F Carb & Fuel : 12V Monkey · Gorilla63mm Forged Piston and Ceramic Cylinder Kit 13. 5: 1 Forged Piston for the 31 25 heads and +6 Stroke Crank Includes: Ceramic Coated Cylinder 63mm Forged Piston Kit w 13. 5: 1 CR Valve Reliefs cut specific for the BRT 31 25 Head Wrist Pin Height specific for use on the +6mm BRT Stroker Crank Wrist Pin, Rings, and Clips Head and Base Gaskets Ceramic cylinders dissipate heat more efficiently to keep engine temps down. A must have for these KLX140s Notes: