Amazon.com: Motorcycle Cruise Control with Silicone Ring Protect, Universal Throttle Assist Aluminum Wrist/Hand Grip Lock Clamp to fit Most Motorcycles and Sports Bikes
BAFSCO 6RLC 6" RING LOCK CLAMP | eBay
Aluminium Clamp 8mm - 90mm Diameter Open Collar Lock Limit Ring Fixing Shaft | eBay