Joker MacHine Throttle Tube Black Anodized for Harley-Davidson All Years Fully CNC-machined from billet aluminum with a precision diamond knurl pattern that ensures no-slip grip performance Special hard black anodized finish for exceptionally smooth action and durability over plastic units Works super smooth due to the precise bore finish; works especially well with a light coating of lithium grease Works perfectly with Jokers JX and Dual Cable style throttle housings Accepts all late-model dual Harley-Davidson throttle cables (accepts 1/4in. round or cylindrical cable lugs)