2011 Triton AUT853, ALL ALUMINUM!!! - Triton's AUT853 trailers have both extruded aluminum frames and decks with a usable deck size of eight feet long by 53 inches wide. The dropped down tongue, lowered deck height, and full length carriage bolt tie-down channels makes these trailers easy to load, tow, and versatile for your hauling needs. A good match for low clearance vehicles and other equipment. The AUT853 has a full aluminum ramp which makes for a low angled ramp for easy loading. The AUT853B trailer is the same trailer but comes standard with a bi-fold ramp. The bi-fold ramp provides a low profile while towing and easily folds out for use.