Hart-Luck Lock-on Grips for Harley-Davidson Second Generation Throttle-By-Wire MotorcyclesODI Hart Luck Lock on Grips for Second Generation Harley Davidson TBW Hart Luck is a collaborative brand created between pro motocrosser Carey Hart and select companies. In this case, pairing with ODI has spawned this MX like full waffle grip designed for motorcyclists by folks who live motorcycles. Classic waffle pattern blends well with many build and bike styles Base pattern is heavily knurled for good grip and increased traction and wear Clutch