{"product_id":"vortex-racing-v4-45-tooth-520-rear-sprocket-black-5","title":"Vortex Racing V4 45 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 45-tooth 520 rear sprocket, part number vtx452AZKV4-45. Designed for street, track, and performance applications, this lightweight aluminum sprocket builds on Vortex’s proven CAT5 platform with a more aggressive design and reduced rotating mass. The result is improved acceleration, throttle response, handling, and overall agility while maintaining dependable power transfer.\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cbr\u003e  \u003cli\u003eExcellent concentricity promotes 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 performance\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003e10–15% lighter than the previous CAT5 design to help reduce rotating mass\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eBlack finish provides a clean, performance-focused 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 Vortex Racing V4 sprocket is engineered for riders who want responsive drivetrain performance without sacrificing strength. Its precision manufacturing helps maintain consistent chain engagement and smooth operation, making it a strong choice for demanding riding conditions. The 45-tooth configuration can also be used to fine-tune final-drive gearing when paired with the appropriate 520 chain and front sprocket.\u003cbr\u003eThis Vortex Racing rear sprocket fits select Kawasaki motorcycles, including the 1991–1992 ZX750 Ninja ZX-7 and ZX-7R, 2009 EX650 Ninja 650R, and 2016 ZR800 Z800 ABS. Confirm your motorcycle’s year, model, chain size, tooth count, and sprocket mounting specifications before ordering. Part number vtx452AZKV4-45 identifies this black V4 520 rear sprocket.\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e45-tooth 520 rear sprocket for select Kawasaki motorcycles\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 sprocket design\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eReduced rotating mass helps improve acceleration, throttle response, handling, and agility\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eExcellent concentricity supports smooth, quiet operation and efficient power transfer\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\u003cul\u003e\u003cli\u003eFits select 1991–1992 Kawasaki ZX750 Ninja ZX-7 and ZX-7R models, 2009 Kawasaki EX650 Ninja 650R, and 2016 Kawasaki ZR800 Z800 ABS\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nKawasaki EX650 Ninja 650R Base 2009\u003cbr\u003e\nKawasaki ZR800 Z800 ABS Base 2016\u003cbr\u003e\nKawasaki ZX750 Ninja ZX-7 Base 1991\u003cbr\u003e\nKawasaki ZX750 Ninja ZX-7 Base 1992\u003cbr\u003e\nKawasaki ZX750 Ninja ZX-7R Base 1991\u003cbr\u003e\nKawasaki ZX750 Ninja ZX-7R Base 1992","brand":"Vortex Racing","offers":[{"title":"Default Title","offer_id":67598463107388,"sku":"vtx452AZKV4-45","price":92.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/7d08cc7e82f75e98c8dd04025f3b4eceL_5b410ed8-f77f-4ff0-bab4-ba6ee770ad9d.jpg?v=1790649254","url":"https:\/\/necycleshop.com\/products\/vortex-racing-v4-45-tooth-520-rear-sprocket-black-5","provider":"NE Cycle Shop","version":"1.0","type":"link"}