{"product_id":"dr-pulley-16x13-sliding-roller-weights","title":"Dr. Pulley 16x13 Sliding Roller Weights","description":"Dr. Pulley 16x13 Sliding Roller Weights for \u003ca href=\"\/scooter-parts-diagrams\/50cc-4-stroke-QMB139-scooter-parts-diagrams\" title=\"50cc 4-stroke QMB139 engines\"\u003e50cc 4-stroke QMB139 engines\u003c\/a\u003e. Please select weight from drop-down menu. \u003cfont color=\"#0000ff\"\u003eThe following sizes now come in Black Pearl material: 5g, 6g, 6.5g, 8g.\u003c\/font\u003e Please see photo gallery for an example.\u003cbr\u003e \u003cbr\u003eTraditionally, gear ratio is changed by the up-and-down rolling movement of the roller weights in the ramp of the Movable Drive Pulley (MDF). \u003cbr\u003e \u003cbr\u003eNow the innovative Dr. Pulley Sliding Roller Weights \u003cb\u003eslide\u003c\/b\u003e up-and-down the ramp to change the gear ratio. This unique sliding movement (not rolling) provides exclusive advantages to increase CVT performance. With \u003cb\u003eDr. Pulley\u003c\/b\u003e, no abnormal wear will occur even when running in high gear.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003eSize: 16x13\u003c\/li\u003e\n\u003cli\u003eSet of 6\u003c\/li\u003e\n\u003cli\u003eAvailable in 3 Gram Through 11 Gram Weights, Including Half Gram Weights\u003c\/li\u003e\n\u003cli\u003eBroadens your range of gear ratios\u003c\/li\u003e\n\u003cli\u003eIncreases acceleration and re-acceleration properties\u003c\/li\u003e\n\u003cli\u003eIncreases top end speed\u003c\/li\u003e\n\u003cli\u003eLasts longer than standard roller weights\u003c\/li\u003e\n\u003cli\u003eU.S. Patent Number: 7,276,004\u003c\/li\u003e\n\u003cli\u003ePlease Note: Weight Color May Vary\u003c\/li\u003e\n\u003c\/ul\u003eHonda Dio, Honda Elite 50, Honda Ruckus 50 (NPS50), QMB139 50cc\/49cc ","brand":"Classic Scooters","offers":[{"title":"Default Title","offer_id":47678038704293,"sku":"169-217   10.5G","price":21.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/classicscootersusa.com\/products\/dr-pulley-16x13-sliding-roller-weights","provider":"Classic Scooters USA","version":"1.0","type":"link"}