Tommaselli clip on handlebar set for 54mm fork tubes. Quality aluminum handlebars with tapered joints make these very adjustable, durable clip ons. Fit 54mm fork tubes as used on most V11 Sport and LeMans models, Centauro. Simply measure the diameter of the fork tube to verify fitment for your model. Approximately 2 or 2.5 inches rise. These clip-ons are available by special order, allow additional 2 to 3 weeks for delivery.