Domane Aluminum

All-day comfort. Any-road performance.

Domane AL offers lasting comfort, performance, and all-road versatility, with a high-value aluminum frame and lightweight design that far outpaces its price point. Featuring a comfort-first carbon fork, and mounts for a top tube bag, rack, and fenders, Domane AL is ready for wherever the road takes you.

• Frame Material: Alpha 100 Aluminum
• Max Tire Size: 38mm
• Frame Fit: Road Endurance

Domane AL 2 Gen 4

• Frame 100 Series Alpha Aluminum
• Weight 56 - 10.55 kg / 23.26 lbs
• Drivetrain Shimano Claris, 2x8
• Wheels Bontrager Paradigm 23

Domane AL 2 is a speedy and versatile performance road bike that's a perfect starting point for anyone looking to get into road riding. With an Alpha Aluminum frame, clearance for larger tires, an 8-speed Shimano Claris drivetrain, rack, fender, and top tube mounts, and a comfortable all-day riding position — Domane AL 2 is perfect for group rides, fast commutes, and even venturing beyond paved paths to most gravel roads.

Lightweight design

A new full carbon fork and updated frame design helps shave around half a pound from the previous generation Domane AL Disc.

Right for any road

Room for bigger tires let you ride everything from smooth pavement to most gravel roads in comfort.

Long-haul comfort

A more upright road riding position keeps you comfortable, confident, and efficient during long days in the saddle.

Pack it up, pack it in

Mounts for a top tube bag, rack, fenders and water bottles let you carry everything you need for day-long adventures, fast commutes, and anything in between.

Modern ergonomics, premium integration

A modern handlebar with 4cm of flare between the drops and hoods put you in a more comfortable position, and new hidden cable routing offers premium integration typically found on more expensive models.

High-value performance

Domane AL Disc is built in Trek's road race heritage, which means it's a road bike you won't outgrow as your rides get longer and faster.

A better way to produce aluminum

Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.

Don’t forget your pedals

This bike doesn’t come with pedals because you’ll have a better time on your new bike if you choose your own. See the pedal guide to find the best pedals for your riding style. We recommend clipless road pedals for control and efficiency.

Specs

Frameset

• Frame: 100 Series Alpha Aluminum, tapered head tube, internal routing, fender mounts, flat mount disc, UDH, 142x12mm thru axle
• Fork: Domane AL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle

Weight

• Weight: 56 - 10.55 kg / 23.26 lbs
• Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).

Drivetrain

• *Shifter:
  • Size: 44, 49, 52, 54, 56, 58, 61
  • Shimano Claris ST-R2000-L, 8 speed, left
  • Size: 44, 49, 52, 54, 56, 58, 61
  • Shimano Claris ST-R2000-R, 8 speed, right
• Front derailleur: Shimano Claris R2000, FD-R2000, 8-speed, 31.8mm clamp
• Rear derailleur: Shimano Claris RD-R2000, long cage, 34T max cog
• *Crank:
  • Size: 44
  • Shimano RS200, 50/34 (compact), 165mm length
  • Size: 49, 52, 54
  • Shimano RS200, 50/34 (compact), 170mm length
  • Size: 56, 58, 61
  • Shimano RS200, 50/34 (compact), 175mm length
• Bottom bracket: Shimano UN30, 68mm, threaded cartridge, 110mm spindle
• Cassette: Shimano HG31, 11-32, 8 speed
• Chain: Shimano Sora HG71, 8 speed
• Max chainring size: 1x: 50T, 2x: 50/34

Wheels

• Hub front: Formula RX-512 alloy, 6-bolt, 100x12mm thru axle
• Skewer front: Bontrager Switch chamfered thru axle
• Hub rear: Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12mm thru axle
• Skewer rear: Bontrager Switch chamfered thru axle, removable lever
• Rim: Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21mm width, Presta valve
• Spokes: 14g stainless steel, black
• Tire: Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32mm

Components

• Saddle: Verse Short, steel rails, 145mm width
• *Seatpost
  • Size: 44, 49
  • Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 250mm length
  • Size: 52, 54, 56, 58, 61
  • Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 330mm length
• *Handlebar:
  • Size: 44, 49
  • Bontrager Comp VR-S, alloy, 31.8mm, 81mm reach, 118mm drop, 38cm width
  • Size: 44
  • Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 36cm control width, 40cm drop width
  • Size: 49
  • Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 38cm control width, 42cm drop width
  • Size: 52
  • Bontrager Comp VR-S, alloy, 31.8mm, 81mm reach, 118mm drop, 40cm width
  • Size: 52
    
  • Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 40cm control width, 44cm drop width
  • Size: 54, 56
  • Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width
  • Size: 54, 56
  • Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 42cm control width, 46cm drop width
  • Size: 58, 61
  • Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width
  • Size: 58, 61
  • Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 44cm control width, 48cm drops width
• Handlebar tape: Bontrager Supertack Perf tape
• *Stem:
  • Size: 44
  • Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length
  • Size: 49
  • Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
  • Size: 52, 54
  • Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
  • Size: 56, 58
  • Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length
  • Size: 61
  • Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 110mm length
• Brake: Tektro C550 mechanical disc brake, dual piston, flat mount
• Brake rotor: Tektro wave, 6-bolt, 160mm
• Rotor size: Max brake rotor sizes: 160mm front & rear

Sizing

How tall are you?

To measure your height, stand straight up, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.

What is your inseam?

How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inseam measurement. Your inseam is very important to your final bike size so please measure carefully.

Sizing

Geometry

All measurements provided in cm unless otherwise noted.

Geometry diagram labeling frame measurements A through N. Each label corresponds to a row in the geometry table below.