Khrome Werks Throttle by Wire Handlebar Extension 300100 Mount Khrome Werks handlebars that are notched for TBW on pre-2008 models Use this extension to even out the length of the left and right grips Retaining pin locks in place on notched end of Khrome Werks TBW handlebars Machined from 6061T6 aluminum May fit other aftermarket handlebars