Piston Kit - 89.97 mm - Gas Gas | Husqvarna | KTM - The piston is heat-treated with a T-5 hardening and tempering cycle - The piston skirt is coated with a high-tech Molybdenum Disulphite coating for faster break in time and increased piston life - Increases engine's displacement, torque and peak horsepower - Forged OE stock compression big bore piston - Piston kit includes piston, rings, wrist pin and circlips

Piston Ring Set - Replacement piston rings - Nitride coated or chrome plated, increasing wear resistance and extending durability

Top End Piston Kit - 51.95 mm - KTM 105SX/XC - The piston is heat treated with a T-5 hardening and tempering cycle - The piston skirt is coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life - Gravity-cast aluminum alloy (not forged) with 18% silicone content - Cast OE replacement piston - Top end kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing