{"product_id":"universal-parts-50cc-minarelli-variator-kit-17-spline-161-205","title":"Universal Parts 50cc Minarelli Variator Kit - 17 Spline","description":"\u003cp\u003eRestore smooth acceleration, eliminate low-end hesitation, and maximize your CVT’s top-end belt transition with the \u003cstrong\u003eUniversal Parts 50cc Minarelli Stock Variator Assembly\u003c\/strong\u003e. An exact OEM-spec replacement for air-cooled and liquid-cooled 49cc\/50cc 2-stroke Minarelli-clone engines, this complete kit repairs a grooved or worn front pulley face and includes pre-calibrated 5-gram roller weights to re-establish optimal CVT shift points for stock and mildly tuned commuter setups.\u003c\/p\u003e\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovable Pulley Face:\u003c\/strong\u003e Smooth, optimized ramp profile for clean, consistent belt travel without premature wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplate with 3 Slide Guides:\u003c\/strong\u003e Rugged construction for reliable roller tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Boss Slider Sleeve:\u003c\/strong\u003e Exact factory alignment for 17-spline crankshafts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6 Roller Weights (5g each):\u003c\/strong\u003e Pre-calibrated for balanced off-the-line takeoff and steady cruising RPMs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankshaft Spline Count:\u003c\/strong\u003e 17 teeth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Plate Inner Diameter:\u003c\/strong\u003e 12.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoller Weight:\u003c\/strong\u003e 5.0 grams each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e 1PE40QMB \/ 41QMB 2-stroke Minarelli clones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 1100-1233\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eFits vehicles using the \u003cstrong\u003e1PE40QMB \/ 41QMB 2-stroke Minarelli-clone engine\u003c\/strong\u003e with a \u003cstrong\u003e17-spline crankshaft\u003c\/strong\u003e:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eCompatible Models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYamaha\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZuma 50 (2002–2011 “Bug Eye”) | Jog 50 (CY50\/CG50) | Vino 50 2-Stroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGenuine Scooter Co.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuddy 50 | Roughhouse 50 | Rattler 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFox 50 | Jet 50 | Noble 50 | Thunderbike 50 | Panther 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCPI \/ Keeway\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCPI Oliver 50 | CPI Hussar 50 | Keeway Hurricane 50 | Keeway Matrix 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvanti \/ Diamo \/ PGO\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAvanti Beta 50 | Diamo Velocity 50 | PGO Big Max 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMalaguti\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePhantom F12 50cc (horizontal Minarelli variants)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant — Spline Check Required:\u003c\/strong\u003e Minarelli-style engines were produced with two crankshaft variations: 15-spline and 17-spline. Count the physical teeth on your crankshaft before ordering. If you need the 15-spline version, see related items.\u003c\/p\u003e\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eUse a holding tool:\u003c\/strong\u003e Never use an impact gun directly on the variator nut without a strap wrench or holding tool — excessive torque can strip the 17 crankshaft splines or crack the kickstart engagement gear.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.P65Warnings.ca.gov\"\u003eCalifornia Prop 65 Warning: www.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"Universal Parts","offers":[{"title":"Default Title","offer_id":49986024374552,"sku":"161-205","price":42.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/450847.jpg?v=1780069317","url":"https:\/\/www.scooterworks.com\/products\/universal-parts-50cc-minarelli-variator-kit-17-spline-161-205","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}