Q. How do I Know what model to buy?

If you have a LUND or ALUMACRAFT BOAT you MUST buy that model no matter what trailer you have.
if you have a TRACKER BOAT you MUST buy that model no matter what trailer you have.
If your trailer is a MasterCraft trailer you would buy model 500M.

If your trailer is a BOATMATE, PHOENIX, EXTREME, MFI, EZ LOADER, SHORELANDER AND MANY MORE  you can buy our Sport model. This is our most universal model. It will fit all trailers with a 3-4 inch bow roller.