{"product_id":"vortex-racing-v4-45-tooth-525-rear-sprocket-black-4","title":"Vortex Racing V4 45 Tooth 525 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 525 rear sprocket, part number vtx435CZKV4-45. Designed as the next generation of Vortex aluminum rear sprockets, the V4 platform builds on the proven CAT5 design with a lighter, more aggressive profile. Reduced rotating mass can help improve acceleration, throttle response, handling, and overall agility for street riding, track use, and other performance 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\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003e10–15% lighter than the Vortex CAT5 sprocket platform\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eBlack finish for a clean, performance-oriented appearance\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eManufactured in the USA\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003eThis Vortex Racing V4 rear sprocket is engineered for riders seeking responsive drivetrain performance without unnecessary rotating weight. Its precision-machined construction helps maintain consistent chain engagement and dependable operation, while the 45-tooth configuration provides a performance-focused gearing option for compatible 525 chain applications. Verify chain size, tooth count, mounting pattern, and motorcycle fitment before installation. The sprocket fits select Yamaha models, including the 2004–2008 YZF-R1, 2006–2007 YZF-R6, 2006–2007 YZF-R6S, and 2006 YZF-R1 LE.\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e45-tooth rear sprocket for compatible 525 chain applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePrecision-machined 7075-T6 aluminum construction\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\u003eReduced rotating mass for improved acceleration and handling response\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAggressive V4 profile 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\u003cbr\u003e\nFitment:\u003cbr\u003e\nSuzuki GSX-R1000 Base 2010\u003cbr\u003e\nSuzuki GSX-R1000 Base 2011\u003cbr\u003e\nSuzuki GSX-R1000 Base 2012\u003cbr\u003e\nSuzuki GSX-R1000 Base 2013\u003cbr\u003e\nSuzuki GSX-R1000 Base 2017\u003cbr\u003e\nSuzuki GSX-R1000 Base 2018\u003cbr\u003e\nSuzuki GSX-R1000 Base 2020\u003cbr\u003e\nSuzuki GSX-R1000 Base 2021\u003cbr\u003e\nSuzuki GSX-R1000 1 Million C.E. Base 2013\u003cbr\u003e\nSuzuki GSX-R1000 ABS Base 2017\u003cbr\u003e\nSuzuki GSX-R1000 ABS Base 2018\u003cbr\u003e\nSuzuki GSX-R1000R Base 2017\u003cbr\u003e\nSuzuki GSX-R1000R Base 2018\u003cbr\u003e\nSuzuki GSX-R1000R Base 2019\u003cbr\u003e\nSuzuki GSX-R1000R Base 2020\u003cbr\u003e\nSuzuki GSX-R1000R Base 2021\u003cbr\u003e\nSuzuki GSX-R1000R Base 2022\u003cbr\u003e\nSuzuki GSX-R1000R Base 2023\u003cbr\u003e\nSuzuki GSX-R1000R Base 2024\u003cbr\u003e\nSuzuki GSX-R1000R Base 2025\u003cbr\u003e\nSuzuki GSX-R1000R 100th Anniversary Edition Base 2021\u003cbr\u003e\nSuzuki GSX-R1000RZ Base 2022\u003cbr\u003e\nSuzuki GSX-R1000RZ Base 2023\u003cbr\u003e\nSuzuki GSX-R1000RZ Base 2024\u003cbr\u003e\nSuzuki GSX-R1000RZ Base 2025\u003cbr\u003e\nSuzuki GSX-R1000X Base 2019\u003cbr\u003e\nSuzuki GSX-R750 Base 2011\u003cbr\u003e\nSuzuki GSX-R750 Base 2012\u003cbr\u003e\nSuzuki GSX-R750 Base 2013\u003cbr\u003e\nSuzuki GSX-R750 Base 2014\u003cbr\u003e\nSuzuki GSX-R750 Base 2015\u003cbr\u003e\nSuzuki GSX-R750 Base 2016\u003cbr\u003e\nSuzuki GSX-R750 Base 2017\u003cbr\u003e\nSuzuki GSX-R750 50th Ann. 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