New and improved design of the Motion Pro Turbo™ throttlePOM pulley with brass bearing for smooth feel and extended wear resistanceDie cast aluminum construction with billet aluminum coverSmooth painted black finishPerfect twist ratio for off road motorcycles and ATVsFits 7/8” (22 mm) barsOpens 20-38 mm carburetorsComes complete with cable adjuster and dust bootIncludes nylon throttle tube with pop out end capSpecial application Motion Pro cables available for use on many other bikesMaximum twist 120 degrees / maximum travel 52 mmReplacement tube P/N 01-0089