Just recently bought a set of 27" 11/8" tire from Nashbar @ $15/$17 @LBS per tire, Sport 1000's appears to have a directional tread and max pressure of 120psi. No idea how they ride or wear. Been riding Conti's for years, these 1000's are brown sidewall with black tread and I expect they will be acceptable for my '78 ride. Wire bead, thin supple sidewalls.