{"product_id":"performance-camshaft-50cc-139qmb-gy6-50cc","title":"Performance Camshaft 50cc (139QMB) GY6 50cc","description":"\u003ch2\u003ePerformance Camshaft for GY6 50cc Engines\u003c\/h2\u003e\u003cp\u003eThis performance camshaft is built for the GY6 139QMB engine and helps 4-stroke scooters run better. It is a worthwhile step up for anyone fitting a 72cc, 82cc, or 100cc big-bore kit. As one of the \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc scooter parts\u003c\/a\u003e, it works to get more out of the engine by improving airflow and supporting higher RPMs. It is intended for off-road use only and suits riders who want to extend what their engine can do.\u003c\/p\u003e\u003ch3\u003eBetter Engine Breathing\u003c\/h3\u003e\u003cp\u003eThe lobe shape on this camshaft is refined to deliver more lift and longer duration than stock units. Greater volumetric efficiency lets the engine draw in and expel gases more effectively, which helps performance on the ride.\u003c\/p\u003e\u003ch3\u003ePrecise Construction\u003c\/h3\u003e\u003cp\u003eA accurately machined 34-tooth timing sprocket is fitted, keeping the valves and piston in correct sync. The hardened steel core is made to handle the high RPMs and loads common in modified builds, offering dependable service for your scooter.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Lobe:\u003c\/strong\u003e 25.8mm × 21mm × 10.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Lobe:\u003c\/strong\u003e 25.5mm × 21mm × 10.2mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSprocket Teeth:\u003c\/strong\u003e 34\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e 2 × TPI #16002C3 (18×32×8mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e CSC Go Max GY6 139QMB 50cc 4-stroke engine (camshaft, cylinder head)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCSC Go Max (GY6 139QMB 50cc 4-stroke engine)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhere it goes:\u003c\/strong\u003e part #9 on the cylinder head camshaft diagram for the CSC Go Max.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/gy6-50cc-parts\"\u003eGY6 50cc Scooter Parts (139QMB)\u003c\/a\u003e · \u003ca href=\"\/collections\/gy6-scooter-parts\"\u003eGY6 Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-cylinder-heads\"\u003eScooter Cylinder Heads \u0026amp; Valves\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51138793078841,"sku":"TT-26773","price":69.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/performance-camshaft-50cc-139qmb-gy6-50cc-1.jpg?v=1794377829","url":"https:\/\/www.trendtimes.com\/products\/performance-camshaft-50cc-139qmb-gy6-50cc","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}