The Easy Racers Javelin/EZ-Tomahawk CX Idler Kit fits right on the stock shaft of your Easy Racer! This kit improves performance on your power side and substantially quiets the drivetrain. Using a T-Cycle Over/Under Idler and Stainless Steel Double-Sided Chain Keeper, the idler floats side to side to maintain the perfect angle when you change gears. Upgrade your chainline today, get a Easy Racers Javelin/EZ-Tomahawk CX Idler Kit!