Ride Harder. Ride Longer. – The R&DURO patent-pending system delivers the ultimate easier clutch pull for serious hard enduro and extreme riders. Say goodbye to arm pump and hand fatigue — our innovative spring-and-linkage design gives you powerful assistance without changing your bike’s original engagement point. Enjoy a smooth, lightweight lever pull that lets you attack gnarly climbs, technical rock sections, and long races with unmatched control. Built to take a beating, it’s your secret weapon for riding all-day with just one finger on the lever.