Rizomas range of clutch levers not only look fantastic, but provide extreme performance upgrades. Rizoma levers have been developed and optimised through in-depth wind tunnel testing and analysis. When used on high speed racetracks, air pressure can have a significant impact on the lever efficiency, braking and airflow performance. To reduce this effect the outer tip of the RRC lever has been hollowed to minimize pressure and optimize performance, plus the RRC lever has a higher adjustment system position for increased accessibility. The Adjustable Plus range of levers features a lever-to-grip distance control system and a sliding control system that allows the length of the lever to be adjusted. To prevent excessive glove wear, the kit includes a rubber insert designed to fill the gap when the lever is set to its maximum extension of 20 mm.