{"product_id":"dhm-149cc-big-bore-kit-for-2022-honda-grom-monkey-125-generation-2-performance","title":"DHM 149cc Big Bore Kit for 2022+ Honda Grom \u0026 Monkey 125 - Generation 2 Performance","description":"\u003ch5\u003eDHM 149cc Big Bore Kit - Generation 2 for 2022+ Honda Grom \u0026amp; Monkey 125\u003c\/h5\u003e\n\u003cp\u003eTransform your 2022+ Honda Grom or Monkey 125 with DHMotoring's second-generation 149cc big bore kit. Engineered for maximum performance and simplified installation, this Gen 2 kit delivers 30% midrange gains and double the stock horsepower at 8500 RPM.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e30% horsepower and torque increase in midrange over intake\/exhaust\/cam setups\u003c\/li\u003e\n\u003cli\u003eDouble the horsepower of stock at 8500 RPM\u003c\/li\u003e\n\u003cli\u003eSignificant power gains across entire rev range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGeneration 2 Improvements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWider skirt bridges for improved squirter clearance\u003c\/li\u003e\n\u003cli\u003eEnhanced lubrication with additional oil control ring hole\u003c\/li\u003e\n\u003cli\u003eTwo additional piston skirt lubrication holes\u003c\/li\u003e\n\u003cli\u003eOptimized 12:1 compression ratio for pump gas to reduce hot detonation\u003c\/li\u003e\n\u003cli\u003eStreamlined manufacturing for better value\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eComplete Kit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e55mm forged piston with ring kit\u003c\/li\u003e\n\u003cli\u003e55mm sleeved cylinder\u003c\/li\u003e\n\u003cli\u003eBase and head gasket set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Components (sold separately):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDHM ECU flash or aRacer MiniX + AF3 combo\u003c\/li\u003e\n\u003cli\u003eHonda injector 16450-KZY-701 (PCX 150 injector)\u003c\/li\u003e\n\u003cli\u003eOil cooler (Kitaco x DHM recommended)\u003c\/li\u003e\n\u003cli\u003eNGK CR9E spark plug\u003c\/li\u003e\n\u003cli\u003eCrankcase vent (AvailMS Cam Cover Vent recommended)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRing gaps must be set during installation - see setup sheet\u003c\/li\u003e\n\u003cli\u003eUse both base gaskets for pump fuel (91-93 octane), OEM gasket only for race fuel\u003c\/li\u003e\n\u003cli\u003eOil cooler required - monitor oil temps closely\u003c\/li\u003e\n\u003cli\u003e91 octane minimum, 93 octane preferred\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 2022+ Honda Grom, Monkey 125, Dax 125, Super Cub, Trail 125 (JC92 platform)\u003c\/p\u003e\n\u003cp\u003eUnlock serious performance with DHMotoring's proven big bore technology.\u003c\/p\u003e","brand":"DHMotoring","offers":[{"title":"Default Title","offer_id":42953810411761,"sku":"DHM-149-22-G2","price":349.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/1348\/7857\/files\/dhmotoring-big-bore-kit-default-title-dhm-149cc-big-bore-kit-for-2022-honda-grom-monkey-125-generation-2-performance-dhm-149-22-g2-10411761-32144236216561.webp?v=1773628660","url":"https:\/\/howlingmoto.com\/products\/dhm-149cc-big-bore-kit-for-2022-honda-grom-monkey-125-generation-2-performance","provider":"Howling Moto","version":"1.0","type":"link"}