{"product_id":"rfx-aluminum-rear-sprocket-40t-for-ktm-husqvarna-and-gas-gas-blue-anodized-finish","title":"RFX Aluminum Rear Sprocket 40T for KTM, Husqvarna, and Gas Gas – Blue Anodized Finish","description":"\u003cp\u003eUpgrade your motorcycle's drivetrain with the RFX Aluminum Rear Sprocket Part Number FXRS 57-40 99BU, designed specifically for KTM, Husqvarna, and Gas Gas bikes. Crafted from high-quality 7075 aerospace aluminum, this sprocket offers exceptional strength and durability while maintaining a lightweight profile that improves overall performance. The CNC machined construction ensures precise fitment and longevity. The sprocket features chamfered weight-reducing cutouts that help decrease rotational mass, contributing to quicker acceleration and better handling. Mud clearing grooves are incorporated to prevent debris build-up, extending the lifespan of the sprocket and maintaining optimal performance under varying riding conditions. The sprocket's two-tone finish combines anodized blue with polished highlights, delivering a factory bike aesthetic that stands out. Strengthening gussets are strategically placed to enhance structural integrity, making this sprocket suitable for aggressive riding and demanding terrain. Whether you're upgrading for a race or replacing worn components, this sprocket provides a perfect balance of form and function, ensuring reliable power transfer and a sleek appearance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eLaser etched RFX logo for authentic branding\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCNC machined from 7075 aerospace aluminum for strength and durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStrengthening gussets enhance structural integrity\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eChamfered weight-reducing cutouts for improved performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMud clearing grooves extend sprocket life by preventing debris buildup\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTwo-tone color anodized and polished finish for a factory-inspired look\u003c\/li\u003e\u003c\/ul\u003e","brand":"RFX","offers":[{"title":"Default Title","offer_id":45191479689411,"sku":"739-3579940B","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/6052\/2435\/files\/eda0-693c264cbd478_03c70360-c7b5-4279-aa59-628d67f593a3.png?v=1779577935","url":"https:\/\/kellymotorsport.com\/products\/rfx-aluminum-rear-sprocket-40t-for-ktm-husqvarna-and-gas-gas-blue-anodized-finish","provider":"Kelly Motorsports","version":"1.0","type":"link"}