Joker Machine Triumph Smooth Choke Knob

Fits Triumph Bonneville, Triumph Thruxton, Triumph Scrambler, Triumph America and Triumph Speedmaster. Made from 6061 billet aluminum. Simply un-screw the existing black plastic unit found on your stock carb and install one of these Joker knobs in it's place. Includes stainless steel threaded (M4 X.7MM) stud, and alignment of engraving (and tightness) is achieved by using a special serrated belleville washer. "Notched" cuts on outside really improve grip of the knob. Works perfectly on Kehin CVK and the new 2009 EFI - CTK "carbs" with the 2-stage fast idle. Offered in your choice of Hard Black anodize or Clear anodize finishes. Made in the USA