Worked great on my R6, had a leaking front valve and was only halfway through tire life, was afraid I'd have to go to the repair shop for a simple valve change. Went ahead and replaced the tail at the same time and it only took a few minutes. I use Dyna balls instead of weights to balance my wheels and the little rubber nubs that remain in the tire don't affect balance or function. Valves are 200% better than traditional rubber valves and hold air better. Recommended to all my colleagues. Great product!