Overview Reviews Product Description Vortex CK6142 Chain and Sprocket Kit for Yamaha YZF-R1 Vortex CK6142 Product Videos Custom Field Product Reviews Write a Review Write a Review × Vortex Vortex CK6142 Chain and Sprocket Kit for Yamaha YZF-R1 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *