Big Bore Complete Kit (900cc) / Patriot 850

The Polaris 850 with its huge 74mm stroke was just asking for a bigger bore and we have done our homework to bring you the 900cc Big Bore. The all-new piston was designed from scratch to accommodate all of the needs of the 900. The all-new 88mm piston is an ultra-high-quality dual ring forged piston. Bikeman exclusive head profile giving you the most focused energy possible to make the most efficient power and maintain knock protection. If you are a technical rider that wants no-lag power the instant you hit the throttle, this kit is for you! There is endless power on tap to get yourself into the best riding situations possible.

• BIG BORE ENGINE KIT (900CC)
• BILLET HEAD KIT
• FAT AZZ PERFORMANCE PIPE (2019+)
• PERFORMANCE MANIFOLD (Y-PIPE)
• STAGE 2 SNYPR CLUTCH KIT
• FACTORY 9R POLARIS PISTONS
• OPTIONAL ECU HARD-FLASH OR TORQUE LINK WITH LICENSE

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