{"product_id":"koso-throttle-body-honda-grom-monkey-2022-128-51","title":"Koso 28mm Throttle Body: Honda Grom \u0026 Monkey 2022+","description":"\u003ch2\u003eIncreased Airflow: Koso 28mm Performance Throttle Body\u003c\/h2\u003e\u003cp\u003eMaximize the volumetric efficiency of your 5-speed engine with the \u003cstrong\u003eKoso 28mm Throttle Body\u003c\/strong\u003e. Specifically engineered for the 2022+ Honda Grom and Monkey 125, this upgrade replaces the restrictive factory unit to allow a higher volume of air into the combustion chamber. The result is a sharper throttle response, improved mid-range pull, and increased top-end power, making it an essential foundation for any performance build.\u003c\/p\u003e\u003ch3\u003eTechnical Performance Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized 28mm Bore:\u003c\/strong\u003e Provides a significant increase in airflow over the stock throttle body without sacrificing the intake velocity needed for low-end torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Machined Internal:\u003c\/strong\u003e Features a smoothed internal bore and a high-tolerance butterfly valve to eliminate turbulence and ensure linear throttle delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Sensor Compatibility:\u003c\/strong\u003e Designed to accept your factory MAP, IAT, and TPS sensors for a clean, integrated installation that maintains ECU communication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Flow Intake Path:\u003c\/strong\u003e When paired with the Koso Intake Manifold, this setup creates a streamlined \"straight-shot\" air path into the cylinder head.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eComprehensive Fitment Guide\u003c\/h3\u003e\u003cp\u003eThis throttle body (SKU: 128-51) is designed exclusively for the \u003cstrong\u003e5-speed (long-stroke)\u003c\/strong\u003e Honda 125cc engine found in:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eModel Series\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eYear Compatibility\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHonda Grom 125 (ABS \u0026amp; Non-ABS)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2022 – 2026+ (5-Speed Models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHonda Monkey 125\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2022 – 2026+ (5-Speed Models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Diameter:\u003c\/strong\u003e 28mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Die-Cast Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer MPN:\u003c\/strong\u003e DY640000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Modification:\u003c\/strong\u003e ECU Reset or Fuel Controller highly recommended\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003ePro-Tuning Note:\u003c\/strong\u003e To achieve the full performance benefits, this throttle body should be used in conjunction with the \u003cstrong\u003eKoso 23-29mm Intake Manifold DP640000\u003c\/strong\u003e. After installation, a \"TP Sensor Reset\" is required to ensure the ECU recognizes the new butterfly position at idle.\u003c\/blockquote\u003e\u003cp style=\"font-size: 0.85em; color: #666;\"\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 128-51 \u003cbr\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Koso Taiwan\u003c\/p\u003e\u003ch3 style=\"color: #983d3c;\"\u003eThis product is not intended for use on public roads or land.\u003c\/h3\u003e","brand":"Koso","offers":[{"title":"Default Title","offer_id":49985980104984,"sku":"128-51","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/840707.jpg?v=1744827228","url":"https:\/\/www.scooterworks.com\/products\/koso-throttle-body-honda-grom-monkey-2022-128-51","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}