Trek Domane AL 4

Smooth endurance performance. Road-ready comfort. Outstanding versatility.

The Trek Domane AL 4 is a true road bike built for comfort, confidence, and speed—perfect for riders beginning their road cycling journey or looking to upgrade to a well-balanced performance machine. With its high-quality aluminum frame, endurance geometry, and reliable Shimano Tiagra drivetrain, this bike blends road efficiency with rugged capability, making it ideal for both smooth pavement and light gravel detours.

Perfect for you if...

You're ready to experience the road in a whole new way. You want a fast, smooth, and comfortable road bike that won’t break the bank. You plan to ride mostly on pavement but want the flexibility to venture onto rougher paths and gravel roads. You dream of long days in the saddle and need a bike built to keep you comfortable from sunrise to sunset.

What you get

Frame

Alpha 100 Series Aluminum frame with shaped tubing for high-end ride quality and aesthetic. Features internal cable routing, rack and fender mounts, a tapered head tube, and flat-mount disc brake compatibility. Includes UDH (Universal Derailleur Hanger) and 12x142mm thru axle for modern drivetrain performance.

Fork

Domane AL full carbon fork with tapered steerer, internal brake routing, fender mounts, and 12x100mm thru axle for precise handling and comfort over rough surfaces.

Drivetrain

• Shifters: Shimano Tiagra R4720, short reach, 10-speed

• Front Derailleur: Shimano Tiagra 4700, 31.8mm clamp

• Rear Derailleur: Shimano Tiagra 4700, long cage, 34T max cog

• Crankset:

  • Size 44: 165mm

  • Size 49–52: 170mm

  • Size 54–56: 172.5mm

  • Size 58–61: 175mm
    Shimano Tiagra 4700, 50/34

• Bottom Bracket: Shimano RS501 BSA

• Cassette: Shimano 10-speed, 11-32T

• Chain: Shimano Tiagra HG54, 10-speed

• Max Chainring Sizes: 1x: 50T, 2x: 50/34

Wheels & Tires

• Rims: Bontrager Paradigm SL, Tubeless Ready, 21mm internal width

• Front Hub: Formula RX-512 alloy, 6-bolt, 12x100mm thru axle

• Rear Hub: Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 12x142mm thru axle

• Axles: Bontrager Switch Thru-Axle, removable lever

• Tires: Bontrager R1 Hard-Case Lite, 700x32mm, 60tpi

• Tubeless Setup: Ready for conversion

Cockpit & Components

• Saddle: Bontrager Verse Short, steel rails, 145mm width

• Seatpost:

  • Sizes 44–49: 250mm length

  • Sizes 52–61: 330mm length
    Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset

• Handlebar: Bontrager Comp or Comp VR-S, alloy, flared drop bars

  • Width varies by frame size from 36–44cm

• Bar Tape: Bontrager Supertack Perf

• Stem: Bontrager Elite, Blendr compatible, 7°, lengths vary from 70–110mm by frame size

• Brakes: Shimano Tiagra hydraulic disc, flat mount

• Rotors: Shimano RT66, 6-bolt, 160mm front and rear

• Max Rotor Size: 160mm front and rear

Why you’ll love it

• A smooth, stable ride that’s perfect for endurance, commuting, or group rides

• Room for wider tires (up to 38mm) for comfort and versatility on mixed surfaces

• Shimano Tiagra 2x10 drivetrain gives you reliable performance and a wide gear range

• Clean aesthetics and easy customization with internal cable routing and mounting points for racks and fenders

• Powerful hydraulic disc brakes ensure confident stopping in any weather

Weight & Limits

• Weight: Size 56 – 10.35 kg (22.82 lbs)

• Weight limit: 125 kg (combined weight of bike, rider, and cargo)

The manufacturer reserves 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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. The prices shown are the manufacturer's suggested retail prices.