I have a steel trailer like mr Arly's for sxs and 4wheelers, works great has minimal rust easy to maintain and repair. I used to haul my pioneer 500 in the bed of my full size truck most 50" wide sxs will fit in a truck bed no problem. For snowmobiles I have 2 aluminium trailers they resist road salt salt alot better than steel imo. My older aluminum one is 20 yrs old or so its sitting in a field because it's riddled with cracks has a half dozen elongated egg shaped holes where steel bolts loosened. it's currently held together with quite a few pieces of unistrut and u bolts lol. My newer one is a Triton with a wishbone tongue and it's held up much better compared to my older one.