ON my 6 x 12 trailer with a wood floor, I nailed two 2x4s parallel in the front running lengthwise the trailer. They are 12-16 inches long. Wide enough apart so tire goes inbetween them. Same going up and down at front on top of the end of the flat two. Then I roll the bike in the slot on the floor and into the slot at the front wall. Strap through triple tree carefully and tighten within 12 inches on each side of the wheel. Push down front end some compressing front shocks and tighten straps. Strap back wheel down with strap actually at 2 o'clock on the tire and ends secured forward a little, say past the axle about 2-3 feet each side of bike. This puts pressure for bike to stay in place forward. You can strap the handlebars on each side to a wider place on the floor, snug and not tight. They will just balance the bike. You should be good to go. You may need to buy some hardware for straps to hook to. hardware screwed to the floor very securely. Good luck.
