PISTON KIT VERTEX 46.94MM RACE EVOLUTION GAS GAS MC85 21-ON HUSQVARNA TC85 14-ON KTM 85 SX 03-ONVertex Pistons have launched a new version for 2 stroke off road pistons named Race Evolution. These exotic pistons, tested by the existing supported racing teams, are specifically for racing application and stand out from the other product lines by reduced top land, 0,8 mm special ring, special MoS2 coating featured by specific pockets to facilitate cylinder piston smoothness and new special dedicated racing profile. Features that make these Vertex