{"product_id":"clutch-torque-spring-139qmb-49cc-high-performance-ncy-brand-1000rpm","title":"NCY Compression Spring (Performance); 139QMB","description":"\u003cp\u003eNCY compression spring for 50cc 139QMB engines. Available in 1k, 1.5k, and 2k rpms.\u003c\/p\u003e\u003cp\u003eCompression springs do a couple of things. First they supply the pressure to engage the belt. They also determine the rate at which the CVT transmission changes from low to high gear. A 1000rpm spring will go into a higher gear than a 2000rpm spring.\u003c\/p\u003e","brand":"NCY","offers":[{"title":"1000 RPM","offer_id":67964533702977,"sku":"1200-1053 1000 RPM","price":19.0,"currency_code":"USD","in_stock":true},{"title":"1500 RPM","offer_id":67992338694465,"sku":"1200-1053 1500 RPM","price":19.0,"currency_code":"USD","in_stock":true},{"title":"2000 RPM","offer_id":67992338727233,"sku":"1200-1053 2000 RPM","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/1000_rpm.jpg?v=1792793650","url":"https:\/\/azscooterparts.com\/products\/clutch-torque-spring-139qmb-49cc-high-performance-ncy-brand-1000rpm","provider":"AZScooterParts","version":"1.0","type":"link"}