Son in law just purchased a X Deck. Had a little adventure loading CanAm 800 ATV. Not sure of his tire size but they have an aggressive tread and the backs are a bit wider. What happened is his quad got half way up, and from what we can analyze his right rear spun out and front came up and off ramp to the right and quad fell over side of ramp. Fortunately he's fine and quad as well. When we measured and checked things out his rear tires are partially riding on outside rails where there's zero grip. His tires were dry. If they were wet or muddy!!!! I'm sure he's not the only one with larger tires. Ramp measures 50.5" outside and with his tires he's 52" no spacers. Has anyone else had any issues? Are all ramps similar in width? I feel the ramp is too narrow for non stock tires. Thanks for comments.