{"product_id":"genuine-buddy-50-roughhouse-50-oem-crankshaft-assembly","title":"Genuine Buddy 50 \u0026 Roughhouse 50 OEM Crankshaft Assembly","description":"\u003ch2\u003eCrankshaft Assembly for Genuine Buddy and Roughhouse Scooters\u003c\/h2\u003e\u003cp\u003eThis crankshaft assembly suits a range of 50cc scooters, among them the Genuine Buddy 50 and Roughhouse 50. It includes a connecting rod and plays a central role in how the engine runs. It is one of the \u003ca href=\"\/collections\/genuine-buddy-parts\"\u003eGenuine Buddy scooter parts\u003c\/a\u003e available for upkeep. Swapping this part out becomes necessary when the engine starts giving trouble or loses power.\u003c\/p\u003e\u003ch3\u003eCompatibility and Function\u003c\/h3\u003e\u003cp\u003eThis crankshaft assembly works with the Genuine Buddy 50, Roughhouse 50, Roughhouse 50 Sport, Rattler 50, and Black Cat 50 scooters. It may also be fitted to other scooters that use 2T horizontal Minarelli engines with 10mm wrist pin bearings. Its job is to turn the up-and-down movement of the piston into rotation, which is what moves the scooter ahead.\u003c\/p\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cp\u003eBefore fitting the crankshaft assembly, make sure you have the required ball bearings on hand, as they are sold separately. The assembly is 240mm long overall and has dedicated threads for the flywheel and the drive end. Installing it correctly matters for how well the engine performs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 240mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlywheel Thread:\u003c\/strong\u003e M10x1.25, 14mm length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive End Thread:\u003c\/strong\u003e M10x1.25, 11mm length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Pin Hole ID:\u003c\/strong\u003e 14mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Pin:\u003c\/strong\u003e 10mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Crankshaft Splines:\u003c\/strong\u003e 17\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Cage:\u003c\/strong\u003e 10x14x13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Genuine Buddy 50, RoughHouse 50 and Rattler 50 (2T), plus Black Cat 50\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine Buddy 50\u003c\/li\u003e\n\u003cli\u003eGenuine Rattler 50\u003c\/li\u003e\n\u003cli\u003eGenuine Roughhouse 50 (2T; standard and Sport listed)\u003c\/li\u003e\n\u003cli\u003eGenuine Black Cat 50\u003c\/li\u003e\n\u003cli\u003eOther 2T horizontal Minarelli-engined scooters (10mm wrist pin bearings)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Confirm that your engine is a 2T horizontal Minarelli with a 10mm wrist pin bearing. The piston pin measures 10mm and the bearing cage is 10x14x13mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it goes:\u003c\/strong\u003e part #1 on the crankshaft diagram for the Buddy 50; part #1 on the crankshaft diagram for the Rattler 50; part #1 on the crankshaft diagram for the Roughhouse 50.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/genuine-buddy-parts\"\u003eGenuine Buddy Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/genuine-scooter-parts\"\u003eGenuine Scooter Parts\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-engines\"\u003eScooter Engines \u0026amp; Engine Parts\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":51136721190969,"sku":"TT-21016","price":196.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/oem-crankshaft-assembly-for-genuine-buddy-50-genuine-roughhouse-50-1.png?v=1794360720","url":"https:\/\/www.trendtimes.com\/products\/genuine-buddy-50-roughhouse-50-oem-crankshaft-assembly","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}