My 5th is similar weight and my research came up with Carlisle or GY Endurance. Weight wise check your rims and if they are good for 80psi you should be good with E rated at about 2800# each. Mine stock came with D rated 2580 each stock which is cutting it a bit close IMO. The E rated also have a higher speed rating which was nice. Not that I really go over 65 but it's nice to know I'm not right up against the rating.