I have 2 of these, $200 each. Sold my motorcycles so I don't need them any more.
The Lock-N-Load Pro Moto Transport System securely holds your motocross bike in your trailer without the use of tie-down straps, floor anchors, or wheel chocks. It takes an enormous amount of pressure off of the fork seals during transit, and it frees up valuable space allowing the transport of more motorcycles or gear. Additionally, the Lock-N-Load can quickly be removed from the trailer floor by loosening the 2 screws and removing the struts, leaving only the low profile mounting plate.