The Trek Domane AL 2 is a lightweight, versatile endurance road bike for riders who want speed, confidence and all-day comfort. An Alpha Aluminium frame, comfortable endurance geometry and a Shimano Claris 8-speed drivetrain make it well suited to weekend group rides, fitness riding and fast daily commutes, while rack and mudguard mounts, flat-mount disc brakes and room for 32 mm tyres let it carry on onto light gravel when the tarmac ends.
Specifications
| Frame | 100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, flat-mount disc, UDH, 142x12 mm thru axle |
| Fork | Domane AL carbon, tapered carbon steerer, internal brake routing, mudguard mounts, flat-mount disc, 12x100 mm thru axle |
| Shifter | Shimano Claris ST-R2000, 8-speed |
| Front derailleur | Shimano Claris R2000, 31.8 mm clamp |
| Rear derailleur | Shimano Claris R2000, medium cage, 34T max cog |
| Crank | Shimano RS200, 50/34 compact |
| Bottom bracket | Shimano UN300, 68 mm, threaded cartridge, 110 mm spindle |
| Cassette | Shimano HG31, 11-32, 8-speed |
| Chain | Shimano Sora HG71, 8-speed |
| Front hub | Formula RX-512 alloy, 6-bolt, 100x12 mm thru axle |
| Rear hub | Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12 mm thru axle |
| Rim | Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23 mm width, Presta valve |
| Tyres | Bontrager Kwaremont Comp, Hard-Case Lite, wire bead, 60 TPI, 700x32 mm |
| Saddle | Verse Short Comp, steel rails, 145 mm width |
| Handlebar | Bontrager Comp, alloy, 31.8 mm |
| Handlebar tape | Trek Gel Cork |
| Stem | Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree |
| Brakes | Tektro C550 mechanical disc, dual piston, flat mount |
| Brake rotors | Tektro Wave, 6-bolt, 160 mm |
| Bike weight (56) | 10.35 kg |
| Weight limit | 125 kg / 275 lbs total — bike + rider + cargo |
Specifications may vary slightly between frame sizes and are subject to change without notice.
Sizing and geometry
Sizing
| Size | 44 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Rider height | 150–153 cm | 156–163 cm | 163–168 cm | 168–174 cm | 174–180 cm | 180–185 cm | 185–191 cm |
| Inseam | 71–73 cm | 74–77 cm | 76–79 cm | 78–82 cm | 81–85 cm | 84–87 cm | 86–90 cm |
Frame geometry
| Frame size | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Seat tube | 44.0 | 47.5 | 50.0 | 52.5 | 54.8 | 57.6 |
| Seat tube angle | 74.6° | 74.2° | 73.7° | 73.3° | 73.0° | 72.7° |
| Head tube length | 12.3 | 14.5 | 16.0 | 17.5 | 19.5 | 23.5 |
| Head angle | 70.8° | 71.3° | 71.3° | 71.9° | 72.0° | 72.1° |
| Effective top tube | 51.6 | 53.0 | 54.2 | 55.4 | 56.7 | 58.6 |
| Bottom bracket drop | 8.0 | 8.0 | 8.0 | 7.8 | 7.8 | 7.5 |
| Chainstay length | 42.5 | 42.0 | 42.0 | 42.0 | 42.5 | 42.5 |
| Wheelbase | 100.1 | 100.3 | 101.0 | 101.8 | 102.2 | 103.8 |
| Standover | 71.7 | 73.5 | 75.4 | 77.6 | 79.6 | 84.2 |
| Frame reach | 36.8 | 37.1 | 37.4 | 37.7 | 38.0 | 38.5 |
| Frame stack | 54.0 | 56.1 | 57.5 | 59.1 | 61.1 | 64.6 |
All measurements in cm unless stated otherwise. Geometry is for the Domane AL Gen 4 platform, shared with the Domane AL 4 and AL 5.
Trek bicycles and Bontrager accessories are reserved online and collected in person — this ensures the right size, a proper bike fit and expert guidance before you ride away.
