{"product_id":"wiseco-0910-3963-pro-lite-piston-kit-39-50mm-ktm-50-sx-2009-2025","title":"Wiseco 0910-3963 Pro-Lite Piston Kit 39.50mm KTM 50 SX 2009–2025","description":"\u003ch2\u003eWiseco 0910-3963 Pro-Lite Piston Kit 39.50mm KTM 50 SX 2009–2025\u003c\/h2\u003e\n\u003cp\u003eThe Pro-Lite piston kit is engineered for all-purpose 2-stroke riding where durability, throttle response, and consistent power delivery are critical. Designed specifically for modern 50cc mini motocross engines, this Wiseco Pro-Lite piston kit uses a dedicated forging process to optimize strength-to-weight ratio, delivering improved reliability and increased horsepower under race and high-hour riding conditions.\u003c\/p\u003e\n\u003cp\u003eManufactured using advanced forging and precision machining techniques, the Wiseco Pro-Lite piston kit features additional lightening operations to enhance throttle response while maintaining long-term durability. Engineered, forged, and machined in the USA, this piston kit is ideal for race rebuilds, preventative maintenance, and performance-focused engine refreshes on Gas Gas, Husqvarna, and KTM 50cc models.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePro-Lite forged piston designed for all-purpose 2-stroke riding\u003c\/li\u003e\n\u003cli\u003eDedicated forging design optimizes strength-to-weight ratio\u003c\/li\u003e\n\u003cli\u003eExtra lightening operations improve throttle response\u003c\/li\u003e\n\u003cli\u003eEnhanced durability, longevity, and horsepower\u003c\/li\u003e\n\u003cli\u003eEngineered, forged, and machined in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2021–2025 Gas Gas MC 50\u003c\/li\u003e\n\u003cli\u003e2017–2025 Husqvarna TC50\u003c\/li\u003e\n\u003cli\u003e2009–2025 KTM 50 SX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this piston suitable for race use?\u003c\/strong\u003e\u003cbr\u003eYes, the Pro-Lite Series is designed for race, practice, and high-hour applications where durability and throttle response are essential.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat bore size is this piston?\u003c\/strong\u003e\u003cbr\u003eThis piston kit is sized at 39.50 mm and must match the cylinder bore size for proper fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this piston made in the USA?\u003c\/strong\u003e\u003cbr\u003eYes, the piston is engineered, forged, and machined in the USA.\u003c\/p\u003e\n\u003cp\u003eThis piston kit is a proven upgrade for restoring engine performance, improving throttle response, and ensuring long-term reliability in competitive 50cc mini motocross engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX\u003c\/strong\u003e – \u003cstrong\u003eChoice of Champions\u003c\/strong\u003e – is located in Clermont\/Montverde, FL. The best motocross shop in Central Florida.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":40467214205011,"sku":"874M03950","price":109.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/DEE0E0A3-0B9A-4F4E-BF9A-66905A87CBA7.jpg?v=1767417788","url":"https:\/\/motohousemx.com\/products\/wiseco-0910-3963-pro-lite-piston-kit-39-50mm-ktm-50-sx-2009-2025","provider":"Moto-House MX","version":"1.0","type":"link"}