TREK Bike tire Bontrager R4 320 Tubular Road




A super supple, hand-built, 320TPI tubular tire that excels in road and crit racing.
Color / Black/Natural
The pavement is calling
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.

Product details
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

Size 700C x 23mm 700C x 25mm
Diameter 700C 700C
Width 23mm 25mm
TPI 320 tpi 320 tpi
Durometer 60a 60a
Type Tubular Tubular
Max pressure 190psi 190psi
ETRTO 23-622 25-622
Puncture protection Hard-Case Lite Hard-Case Lite
Weight 280g 290g


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