Ultra compact housing with snap-together elbows make it easy to install and change reels, Requires less handlebar space for lever clearance and throttle position, Smaller reels for slower throttle rate and larger reels for faster throttle rate, Cable boot keeps dirt and dust out for reliable and smooth operation, Lower section of cables use 5mm housing with PTFE liner for reduced friction, increased routing flexibility and lighter weight, Upper section of cables use 6mm housing to provide solid support of adjusters, Kit includes Rev 2 throttle assembly with throttle tube, black vinyl cables, standard interchangeable reels and cam reel