Trek Domane AL 2 Gen 4

Domane AL 2 is a lightweight road bike built for new riders who want speed, versatility, and confidence on the road. It features an Alpha Aluminum frame, an 8-speed Shimano Claris drivetrain, and a comfortable all-day geometry that’s great for group rides, fitness riding, or fast commutes. Rack, fender, and top tube mounts add everyday utility, and clearance for larger tires means you can venture off the pavement onto light gravel.

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 - 10.35 kg / 22.82 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

Shimano Claris R2000, 8 speed

Front derailleur

Shimano Claris R2000, 31.8 mm clamp

Rear derailleur

Shimano Claris R2000, medium cage, 34T max cog

*Crank

Size: 44, 49, 52, 54, 56

Shimano RS200, 50/34 (compact), 165 mm length

Size: 58, 61

Shimano RS200, 50/34 (compact), 175 mm length

Bottom bracket

Shimano UN300, 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 23, Tubeless Ready, 24-hole, 23mm width, Presta valve

Tire

Bontrager Kwaremont Comp, Hardcase Lite, wire bead, 60 tpi, 700x32mm

Components

Saddle

Verse Short Comp, steel rails, 145mm width

*Seatpost

Size: 44, 49

Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 250 mm length

Size: 52, 54, 56, 58, 61

Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length

*Handlebar

Size: 44
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 36cm control width, 40cm drop width

Size: 49, 52
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 38cm control width, 42cm drop width

Size: 54, 56, 58
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 40cm control width, 44cm drop width

Size: 61
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 42cm control width, 46cm drop width

Handlebar tape

Trek gel cork

*Stem

Size: 44

Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length

Size: 49

Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length

Size: 52, 54

Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length

Size: 56, 58

Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 100 mm length

Size: 61

Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 110 mm 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

*Trek 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, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.