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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Upgrade with confidence and experience race-ready strength in your TRX400EX
not billet
Experience a thrilling surge of acceleration and power that will have you conquering the toughest terrain with ease
we believe in the best parts
Banshee Athena 421 4mm Stroker Conversion 68mm Wiseco Pistons Top End Redo Kit Maverick Max 1000R Upgrade with confidence and experienceTop end parts needed to convert your Athena 392cc big bore to a 421cc stroker Wiseco 68mm forged pistons (Pair) Nitrite coated piston rings Chrome wristpins Circlips Billet 24cc custom cut stroker domes (Pair) Cometic top end gasket kit Cool head O ring kit Heavy duty wristpin bearings (Pair) Works with a 4mm stroker crankshaft Runs on pump or race gas No case or head mods required THROW OUT THAT SPACER PLATE TOO! BPRATV The Best Parts. The Best