Kuryakyn Mechanical Throttle Bar End Cruise Assist Enjoy those longer rides and relax your throttle hand with the Mechanical Throttle Assist. The spring-loaded tensioner makes it easy to set without over tightening for easy throttle shutdown when needed. Features: Simple and clean looking Attaches to the end of the handlebars Holds throttle at desired location Spring loaded tensioner Sold each Matching left side bar end weight sold separately ( Kuryakyn 6288 )