The Xpress™TRX adjusts from 5.5" to 23" wide allowing it to fit nearly all scupper style kayaks. The padded uprights protect the hull from abrasion and firmly hold the kayak in place during transport. With a maximum load rating of 150 lb (68 kg), these carts can handle most sit-on-top recreational boats with gear. Constructed of tough marine grade aluminum and finished with a silver anodized surface for long term dependable service. Features include adjustable mark-proof rubber padding, corrosion resistant hardware and a fold-away kick-stand for stationary stability. Each cart also includes TRX airless tires that guarantee you will never be caught with a flat tire during portage. With the integrated push button wheel release system, the need for wheel retainer clips is eliminated.