KTM 250SX/Husqvarna TC250 300cc Factory Big Bore CYLINDER Kit for 250 19-22

  
KTM/Husqvarna 300cc Factory Big Bore Kit for 250 TC/SX 19-22. All the parts required for converting your 250 SX to a 300 SX for the open class. No need for the jets to be changed on the 250 SX carburetor.