{"product_id":"vertanding-primair-secundair-52-15-39-doppler-mbk-booster-yamaha-bws","title":"Gearing Primary\/Secondary 52\/15-39 Doppler MBK Booster \/ Yamaha BW's","description":"\u003cp data-start=\"73\" data-end=\"435\"\u003eThe Doppler primary and secondary gear set 52\/15-39 has been developed for Minarelli 50cc 2-stroke engine blocks and ensures a significantly longer transmission ratio than the original transmission. This transfers power to the rear wheel more efficiently, resulting in a higher top speed and lower revs at higher speeds.\u003c\/p\u003e\n\u003cp data-start=\"437\" data-end=\"566\"\u003eThis complete gear set is ideal for powerful 70cc sports and racing setups where the standard gearing becomes too short.\u003cstrong data-start=\"568\" data-end=\"579\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"761\" data-end=\"779\"\u003e\u003cstrong data-start=\"761\" data-end=\"779\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"781\" data-end=\"1007\"\u003eBrand: Doppler\u003cbr data-start=\"794\" data-end=\"797\"\u003eType: Primary and secondary gear set\u003cbr data-start=\"839\" data-end=\"842\"\u003ePrimary gearing: 52\/15\u003cbr data-start=\"868\" data-end=\"871\"\u003eSecondary teeth: 39 teeth\u003cbr data-start=\"903\" data-end=\"906\"\u003eApplication: Transmission\u003cbr data-start=\"929\" data-end=\"932\"\u003eSuitable for: Minarelli 50cc 2 Stroke engine blocks\u003cbr data-start=\"981\" data-end=\"984\" data-is-only-node=\"\"\u003eMaterial: Hardened steel\u003c\/p\u003e\n\u003cp data-start=\"1009\" data-end=\"1039\"\u003e\u003cstrong data-start=\"1009\" data-end=\"1039\"\u003eThis product is suitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1041\" data-end=\"1353\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eMBK Booster 50cc 2 Stroke\u003cbr data-start=\"1064\" data-end=\"1067\"\u003eMBK Booster One 50cc\u003cbr data-start=\"1087\" data-end=\"1090\"\u003eMBK Nitro 50cc 2 Stroke\u003cbr data-start=\"1111\" data-end=\"1114\"\u003eMBK Ovetto 50cc 2 Stroke\u003cbr data-start=\"1136\" data-end=\"1139\"\u003eMBK Rocket 50cc 2 Stroke\u003cbr data-start=\"1161\" data-end=\"1164\"\u003eMBK Stunt Naked 50cc 2 Stroke\u003cbr data-start=\"1191\" data-end=\"1194\" data-is-only-node=\"\"\u003eYamaha Aerox 50cc 2 Stroke\u003cbr data-start=\"1218\" data-end=\"1221\"\u003eYamaha BW's 50cc 2 Stroke\u003cbr data-start=\"1244\" data-end=\"1247\"\u003eYamaha BW Easy 50cc\u003cbr data-start=\"1266\" data-end=\"1269\"\u003eYamaha Neo's 50cc 2 Stroke\u003cbr data-start=\"1293\" data-end=\"1296\"\u003eYamaha Next 50cc 2 Stroke\u003cbr data-start=\"1319\" data-end=\"1322\"\u003eYamaha Slider Naked 50cc 2 Stroke\u003c\/p\u003e","brand":"Doppler","offers":[{"title":"Default Title","offer_id":57528005656958,"sku":"264135","price":103.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/5097\/6870\/files\/freshpartss-2026-06-09T131753.480.png?v=1781003913","url":"https:\/\/freshparts.uk\/products\/gearing-primary-secondary-52-15-39-doppler-mbk-booster-yamaha-bws","provider":"Fresh Parts","version":"1.0","type":"link"}