{"product_id":"gates-powergrip-gt4-25mm-primary-belt-for-sur-ron-ultra-bee-640-8mr-25mm","title":"Gates PowerGrip GT4 25mm Primary Belt for Sur Ron Ultra Bee | 640-8MR-25MM","description":"\u003cp\u003eMaximize drivetrain reliability on your Sur Ron Ultra Bee with the \u003cstrong\u003eGates PowerGrip GT4 25mm Primary Belt (640-8MR-25MM)\u003c\/strong\u003e. Developed through GritShift R\u0026amp;D in collaboration with Gates® engineers, this is a direct OEM replacement and performance upgrade engineered specifically for the Ultra Bee's flanged primary pulley system. Manufactured in the USA.\u003c\/p\u003e\n\n\u003ch2\u003eWhy the GT4?\u003c\/h2\u003e\n\u003cp\u003eThe Ultra Bee's wider belt sprockets are designed to handle higher torque loads than narrower platforms. The 25mm GT4 belt maximizes belt width for proper pulley engagement — eliminating overhang, misalignment, and the accelerated edge wear common with inferior aftermarket belts. Load is distributed evenly across the full belt width, reducing heat buildup and friction for longer service life.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect OEM replacement and performance upgrade for the Sur Ron Ultra Bee\u003c\/li\u003e\n  \u003cli\u003e25mm wide — maximum width for OEM belt sprockets\u003c\/li\u003e\n  \u003cli\u003eGates PowerGrip GT4 high-torque carbon synchronous construction\u003c\/li\u003e\n  \u003cli\u003eOptimized tooth profile for stable tracking on flanged pulleys\u003c\/li\u003e\n  \u003cli\u003eReduced friction for smoother power transfer and longer belt life\u003c\/li\u003e\n  \u003cli\u003eEthylene elastomer compound resists stretch and wear\u003c\/li\u003e\n  \u003cli\u003eIdeal for stock and high-output modified builds\u003c\/li\u003e\n  \u003cli\u003eDeveloped with Gates® engineers | Manufactured in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Gates \/ GritShift\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSKU \/ Part Number:\u003c\/strong\u003e 640-8MR-25MM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Width:\u003c\/strong\u003e 25mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e PowerGrip GT4 Carbon Synchronous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.24 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Sur Ron Ultra Bee\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GritShift","offers":[{"title":"Default Title","offer_id":45291846893809,"sku":"640-8MR-25MM","price":69.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/1348\/7857\/files\/gritshift-drivetrain-brakes-default-title-gates-gt4-primary-belt-ultra-bee-640-8mr-25mm-46893809-34345960145137.jpg?v=1773630924","url":"https:\/\/howlingmoto.com\/products\/gates-powergrip-gt4-25mm-primary-belt-for-sur-ron-ultra-bee-640-8mr-25mm","provider":"Howling Moto","version":"1.0","type":"link"}