Complete racing gearbox removed from a 99-02 Yamaha R6 5eb. Very little wear. Please see photos. Ratio comparisons can be seen in the last picture. Upgraded dog design to prevent the common 2nd gear issue. The Yamaha R6 5EB 1999-2002 Pre Injection Close Ratio Racing Gearbox is a high-performance transmission component designed specifically for racing motorcycles. With a close ratio design, this gearbox provides smoother and quicker gear shifts, allowing for better control and performance during high-speed racing conditions. Riders looking to upgrade their motorcycle's transmission system with a reliable and competitive component may find this gearbox to be a suitable choice for their Yamaha R6 5EB model.