{"product_id":"vortex-racing-v4-43-tooth-520-rear-sprocket-black-4","title":"Vortex Racing V4 43 Tooth 520 Rear Sprocket - Black","description":"The next generation of Vortex aluminum rear sprockets, V4 builds on the long-running CAT5 sprocket platform with a lighter, more aggressive design. Reduced rotating mass improves acceleration, throttle response, handling, and overallagility. Ideal for street, track, and performance applications.\n\u003cul\u003e\n  \u003cli\u003eExcellent concentricity for smooth, quiet operation and efficient power transfer\u003c\/li\u003e\n  \u003cli\u003ePrecision-machined from high-strength 7075-T6 aluminum\u003c\/li\u003e\n  \u003cli\u003e10-15% Lighter than CAT5\u003c\/li\u003e\n  \u003cli\u003eManufactured in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your motorcycle’s drivetrain with the Vortex Racing V4 43-Tooth 520 Rear Sprocket, part number vtx840AZKV4-43. Developed as the next generation of Vortex aluminum rear sprockets, the V4 builds on the proven CAT5 platform with a lighter, more aggressive design. Reduced rotating mass helps improve acceleration, throttle response, handling, and overall agility, making this sprocket well suited for street riding, track use, and performance-focused applications.\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cbr\u003e  \u003cli\u003eExcellent concentricity supports smooth, quiet operation and efficient power transfer\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003ePrecision-machined from high-strength 7075-T6 aluminum for durability and reliable performance\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003e10–15% lighter than the Vortex CAT5 sprocket design to help reduce unsprung and rotating weight\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eBlack finish provides a clean, performance-oriented appearance\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eManufactured in the USA by Vortex Racing\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003eThe 43-tooth configuration is designed for compatibility with 520 chain systems and can help fine-tune final-drive performance when paired with the appropriate front sprocket and chain. Its precision construction promotes consistent chain engagement and dependable power delivery during everyday riding or demanding track sessions. Always verify fitment, chain size, tooth count, and drivetrain specifications for your motorcycle before installation.\u003cbr\u003eBuilt for riders who want responsive handling and efficient power transfer, the Vortex Racing V4 rear sprocket combines lightweight 7075-T6 aluminum construction with precise machining and proven Vortex engineering. Install with the manufacturer’s recommended torque specifications and inspect the chain and related drivetrain components during service to support safe, reliable operation.\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e43-tooth rear sprocket for 520 chain applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePrecision-machined from high-strength 7075-T6 aluminum\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003e10–15% lighter than the Vortex CAT5 design\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eExcellent concentricity for smooth, quiet operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEfficient power transfer and reduced rotating mass\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAggressive V4 design for street, track, and performance use\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBlack finish\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eManufactured in the USA\u003c\/li\u003e\u003c\/ul\u003e","brand":"Vortex Racing","offers":[{"title":"Default Title","offer_id":67598428373308,"sku":"vtx840AZKV4-43","price":92.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/7d08cc7e82f75e98c8dd04025f3b4eceL_49c225be-2437-4158-830d-7e96e51bb15b.jpg?v=1790648537","url":"https:\/\/necycleshop.com\/products\/vortex-racing-v4-43-tooth-520-rear-sprocket-black-4","provider":"NE Cycle Shop","version":"1.0","type":"link"}