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Triathlon and time trial specialists

Every second counts. Every watt precious. Nothing gets between you and a PR. The R4 Aero road tire is your tire. With it's aerodynamic profile, Aero Wings and 220TPI casing, this tire lives up to its name as the world's fastest tire.

Product details

  1. Unique tread profile improves aerodynamics and saves 37 seconds over 40km
  2. Aero Wing bead eliminates gap between rim and tire for ultimate aero advantage
  3. Hard-Case Lite sub-tread material protects against punctures
  4. Go green and save green - Zero packaging means zero waste and zero extra cost

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Features

Specifications

Size 700C x 22mm
Diameter 700C
Width 22mm
TPI 220 TPI
Durometer 60a
Bead Folding
Type Clincher
Max pressure 125psi
ETRTO 23-622
Puncture protection Hard-Case Lite
Studdable No
Weight 170g
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Weights are based off Trek pre-production products at time of publication. Weights may vary in final production.

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