TSP 2-Piece Head O-ring Kit. Fits all KTM, Husky, and Gas Gas 250cc and 300cc TPI and Carb engines.
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We installed a TSP Power Kit for carburetor bikes on this 2019 KTM 250 XC when the bike was new. After 140 hours of hard riding from an expert rider, we were pleasantly surprised how well the cylinder and piston looked.