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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
For use with OEM valves
2020 Can-Am Defender HD10 X mr
2007-2014 KTM 250 SX
2014-2016 Honda CRF250R
2008-2020 KTM 150 SX
Athena P400485100032 Big Bore Cylinder Kit (290cc) - 6.00mm Oversize to 83.00mm, 12.7:1 Compression helmets-offroad-helmets For use with OEM valvesKits include aluminum cylinder with nickel carbide coating designed with larger water jackets. Includes Forged piston, rings, clips and pin. Athena top end gasket set includes required seals and hardware. Easy to follow step by step installation instructions. Most are bolt on; no machining required except where noted. Vehicle Fitment: 2008 2017 Yamaha WR250R 2008 2011 Yamaha WR250X
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