The R4 tubular's race performance gives unparalleled road feel yet is extremely durable for a racing tubular, thanks to Hard-Case Lite protection. The Hard-Case Lite sub tread material protects against punctures in the peloton and up the hardest and sketchiest road climbs.
Excellent for road and criterium racing
Supple polyamide synthetic fiber reinforcement for added casing strength
Hard-Case Lite protects against punctures with superior, lightweight, sub-tread material
38mm valve length with valve extenders available separately