{"product_id":"hoca-qmb139-roller-weights","title":"Hoca QMB139 Roller Weights","description":"Hoca Roller Weights for 50cc 4-stroke QMB139 engines. The QMB139 is the most popular 50cc 4-stroke engine found on Chinese scooters.\u003cbr\u003e\u003cbr\u003eWe recommend starting performance upgrades by changing the variator roller weights first.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cu\u003eHeavier roller weights\u003c\/u\u003e= A slower take off speed with more acceleration and a higher top speed. \u003c\/b\u003e\u003cbr\u003e\u003cb\u003e\u003cbr\u003e\u003cu\u003eLighter roller weights\u003c\/u\u003e = A faster take off speed with less acceleration and lower top speed.\u003cbr\u003e \u003cbr\u003ePlease see our \u003ca title=\"Warranty and Returns Policy\" href=\"http:\/\/www.TrendTimes.com\/info.html\" target=\"_blank\"\u003e\u003cfont color=\"#000000\"\u003eWarranty \u0026amp; Returns Policy.\u003c\/font\u003e\u003c\/a\u003e\u003cbr\u003e\u003c\/b\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":43575480320057,"sku":"169-149","price":8.86,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.trendtimes.com\/products\/hoca-qmb139-roller-weights","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}