Features /

Domane 4 Series flies past any other carbon endurance race bike in its class, with IsoSpeed for race comfort, endurance geometry for stability, and Power Transfer Construction for speed.

Upgrades from Domane 4.3 WSD

  • Bontrager Race TLR wheelset
  • 11-speed drivetrain
  • Full Shimano Ultegra drivetrain

Project One

Our exclusive custom bike program. You dream it, we build it.

400 Series OCLV

Ultra high performance, within reach. The areal weight range and modulus mix of 400 Series OCLV provides an exhilarating sense of acceleration and confident handling.

Endurance fit

As befits Domane, the world’s most advanced endurance racing bike, we’ve developed the world’s most comfortable racing geometry. Still racy, but with a slightly higher head tube.

Endurance geometry

Performance. Stability. Victory. Domane endurance geometry is a triple threat, maximizing control, handling, and responsiveness through perfectly tuned rider weight bias.

WSD: fit for women

A great-fitting bike is a joy to ride. The better the fit, the greater your comfort, stability, power, and control. And nothing fits better than Trek WSD, Women’s Specific Design.

IsoSpeed decoupler

A technological revolution. IsoSpeed isolates the seat tube from the rest of the frameset, doubling compliance and comfort with zero performance drawbacks.

IsoSpeed fork

It's a one-two punch: generous ride-tuned sweep and shape increases compliance for a smoother ride, and unique dropout placement optimizes the wheelbase.

Power Transfer Construction

Trek Power Transfer Construction puts more power to the road by optimizing the head tube/down tube/bottom bracket/rear wheel connection.

E2 head tube and fork

E2 head tube tapers from a 1.5" lower to a 1-1/8" upper, placing more material where it matters most for the lateral rigidity of a 1.5" system without the added weight.

Vanishing fender mounts

Discreet mounts accommodate full-coverage fenders for added utility.

BB90

BB90 is the widest bottom bracket available on a road bike. This Trek-exclusive carbon BB makes the frame lighter, stiffer, and quicker to accelerate.

3S integrated chain keeper

Our 3S chain keeper is integrated directly into the bike frame. It's an elegant solution that provides flawless shifting even on rough roads and under heavy loads.

Direct-mount front derailleur

Provides accurate shifting in a lightweight, minimal package.

DuoTrap compatible

DuoTrap seamlessly integrates the computer sensor into the frame to measure speed, distance, and cadence with no added aerodynamic drag.

Crank: compact

Two front chainrings with shorter gearing, for the best combination of climbing ability and flat-terrain speed.

11 speed

The new pinnacle of shifting performance.