My toy carrier trailer deluxe came with the Bike Pro installed. It works great bike stands straight up and doesn't budge and best of all easy on and easy off.
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I got a trailer from a company called Baxley.They have chocks installed on it that you ride into and get off your bike and use two yes I said two straps to tie your bike down.
None of that compressing your frontend.
Shortleg[Dave]