Dual 5550 Evolution has arrived. 24mm internal, hooked, with a variable 55-50mm depth profile and our patented Radially Staggered Lacing creates the wheelset that can Do It All. Holeless tyre beds make tubeless set up a breeze.Road. Gravel. Everything in between. Our commitment to keeping you Fast All Ways.Wheelsets come with 2 padded Princeton CarbonWorks wheelbags and tubeless valves.