The MaxxRaxx mounting bracket is designed to fit at the side of the flange tow ball so you can tow and carry bikes at the same time subject to vehicle/caravan/trailer combination and height of your jockey wheel. MaxxRaxx have a additional towing height extension kit to aid with clearance over the jockey wheel 20ET40. Carry's up to 4 Bikes.Tilts for East Boot Access. Bikes are gripped firmly and held clear of your vehicle to prevent damage to paintwork. Compact Size for Easy Storage. Tow and carry leaves your tow ball left free to enable towing at the same time, even with an AL-KO stabiliser Height Extension may be required "20ET40". Fully Lockable- Locks Bikes to Carrier & Carrier to Vehicle. The item "MaxxRaxx Premier 4 Bike Cycle Carrier Bike Rack Tow Bar Mounted Lockable" is in sale since Tuesday, January 31, 2012. This item is in the category "Sporting Goods\Cycling\Car Racks". The seller is "ggcycledeals" and is located in Leicester. This item can be shipped to United Kingdom.