{"product_id":"vortex-racing-v4-43-tooth-520-rear-sprocket-black-9","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 final-drive performance with the Vortex Racing V4 43-tooth 520 rear sprocket, part number VTX435ZKV4-43. Designed for street riding, track use, and other performance applications, this black aluminum sprocket builds on Vortex Racing’s proven CAT5 platform with a lighter, more aggressive profile. Reduced rotating mass helps improve acceleration, throttle response, handling, and overall motorcycle agility.\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 dependable performance\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003e10–15% lighter than the previous CAT5 design\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eManufactured in the USA\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003eThe Vortex Racing V4 sprocket is engineered for riders who want responsive power delivery without sacrificing durability. Its precision-machined construction supports accurate chain alignment and consistent operation, while the lightweight aluminum design helps reduce unsprung and rotating weight. The 43-tooth configuration is compatible with 520 chain applications and can help tailor final-drive gearing to suit the motorcycle and riding style.\u003cbr\u003eThis rear sprocket fits select Yamaha YZF-R1 and YZF-R7 models from 1998 through 2003, as well as select Suzuki GSX-R600 models from 2011 through 2013. Confirm the motorcycle’s year, model, chain size, and existing gearing before installation. Professional installation is recommended to ensure proper alignment, torque, and chain adjustment.\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: Vortex Racing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: VTX435ZKV4-43\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTooth Count: 43 teeth\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eChain Size: 520\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaterial: Precision-machined 7075-T6 aluminum\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFinish: Black\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesign: Lightweight V4 profile with reduced rotating mass\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePerformance: Supports improved acceleration, throttle response, handling, and agility\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eManufacturing: Made in the USA\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFitment: Select 1998–2003 Yamaha YZF-R1 and YZF-R7 models and 2011–2013 Suzuki GSX-R600 models\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nKawasaki CX500 Ninja 7 Hybrid Base 2024\u003cbr\u003e\nKawasaki EX500 Ninja 500 Base 2024\u003cbr\u003e\nKawasaki EX500 Ninja 500 Base 2025\u003cbr\u003e\nKawasaki EX500 Ninja 500 Base 2026\u003cbr\u003e\nKawasaki EX500 Ninja 500 40th Anniversary Edition ABS Base 2024\u003cbr\u003e\nKawasaki EX500 Ninja 500 ABS Base 2024\u003cbr\u003e\nKawasaki EX500 Ninja 500 ABS Base 2025\u003cbr\u003e\nKawasaki EX500 Ninja 500 ABS Base 2026\u003cbr\u003e\nKawasaki EX500 Ninja 500 ABS KRT Edition Base 2024\u003cbr\u003e\nKawasaki EX500 Ninja 500 KRT Edition Base 2024\u003cbr\u003e\nKawasaki EX500 Ninja 500 KRT Edition Base 2025\u003cbr\u003e\nKawasaki EX500 Ninja 500 SE ABS Base 2025\u003cbr\u003e\nKawasaki EX500 Ninja 500 SE ABS Base 2026\u003cbr\u003e\nKawasaki EX500 Ninja 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