HONDA JDM Rear Anti Roll Bar. The JDM anti roll bar is thicker (22mm) than the one found as standard on a UK car (19mm) and offers increased stability at the rear of the car. It comes complete with new rubber bushes. This is a 'must do' modification if you have a Civic Type R 01-06. As with all Genuine Honda products, expect a perfect fit. We also stock the JDM Honda Front Anti Roll Bar.