This PBR kit includes a 525 size EK chain, a 41 teeth steel rear sprocket and a 15 teeth front sprocket, keeping the ratio same to the original for flawless synchronization. Made with high-quality materials and precision using advanced manufacturing processes, these components ensure ideal power distribution. The kit offers numerous advantages, including responsive acceleration thanks to components designed for smooth and immediate driving, reliability in every situation with a safe and resistant transmission with superior quality to the standard one. Steel rear sprocket with 525 size with Z41 teeth. Front sprocket 525 size with Z15 teeth. Same ratio as the original equipment. The price does not include import costs.