The front is brand new, never seen a tire. It is a warranty replacement. The rear has 3/4 season on it. It was alternated with another set of training wheels. Minor decal scuffs- overall excellent condition. Comes with skewers and valve extenders. I can send pics if you like. $500 shipped from Boulder. Local sale (no shipping) subtract $25. Got the set this way because the 40 front handles a little better in cross winds, without compromising aerodynamics. These wheels roll fast.
thanks,
Justin