2006 2007 Kawasaki Ninja 1000 ZX-10R ZX1000 Rear Sprocket 43 Tooth Brand New 43 Tooth Rear Steel Sprocket Race-Driven sprockets are manufactured to exceed OEM specifications Race-driven sprockets are produced using hardened S45C steel Fits 2006 2007 Kawasaki Ninja ZX-10R ZX1000