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Used by KTM Red Bull USA
2009 Honda TRX420FM FourTrax Rancher 4X4
2020-2025 Suzuki GSX-R1000
Fits: 5+2/4+3
Cases are available for 3 1/2in stock and 3 5/8in big bore motors for any stroke up to and including 5in and most stock length connecting rods
Namura Technologies NA-40000 Piston Kit - Standard Bore 63.94mm engine-clutch-components-baskets Used by KTM Red BullBore: 63. 94mm Compression: High Compression Sizing: Standard Bore Hi Compression. MOS2 (Teflon Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown
