Extreme Trailers - EXT 1100 Swing RollerExtreme Trailers EXT 1100 Swing Roller The EXT 1100 Swing Roller is a heavy duty, fully galvanised boat trailer designed and manufactured in the UK, capable of carrying a boat weight of up to 820kg. Its fully adjustable design, including an adjustable swing arm and numerous wobble rollers, allows it to accommodate most hull shapes, facilitating easy launch and recovery. Extreme Trailers EXT 1100 Swing Roller Key Features Standard features include :