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Bontrager R4 Aero Road Tire

Model 430055

The world's fastest road tire means pure speed for triathlons and time trials

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.

Key features

  • Unique tread profile improves aerodynamics and saves 37 seconds over a 40K distance
  • Unique Aero Wing bead eliminates gap between rim and tire for ultimate aero advantage
  • Hard-Case Lite protects against punctures with superior, lightweight, sub-tread material
  • Flexible shipping options

    Ship your gear purchase to your home or receive free shipping when you send your order to a Trek retailer for pick-up. All bike purchases must ship to a Trek retailer, some of which offer home delivery.

  • Unconditional Bontrager Guarantee

    If for any reason you're not satisfied with your Bontrager gear, we'll take it back. Either ship it back to us or return to your Trek retailer within 30 days of purchase.

  • Warrantied for life

    All new Trek bikes come with Trek Care — the industry's best warranty and loyalty program. Register your bike and ride easy knowing we've got you covered.

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