The Domane AL 2 Gen 4 is a lightweight road bike for new riders who want speed, versatility and confidence. It has a 100 Series Alpha Aluminium frame with a carbon fork, an 8-speed Shimano Claris drivetrain and comfortable all-day geometry that suits group rides, fitness riding and fast commutes. Rack, mudguard and top tube mounts add everyday practicality, and clearance for bigger tyres lets you take it onto light gravel.
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 |
| Derailleurs | Shimano Claris R2000 front (31.8 mm clamp) and rear (medium cage, 34T max cog) |
| Crank | Shimano RS200, 50/34 (compact) |
| Bottom bracket | Shimano UN300, 68 mm, threaded cartridge |
| Cassette / chain | Shimano HG31, 11-32, 8-speed — Shimano Sora HG71 chain |
| Hubs | Formula alloy, 6-bolt — 100x12 mm front, 142x12 mm rear, Shimano 11-speed freehub |
| Rims | 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 |
| Brakes | Tektro C550 mechanical disc, dual piston, flat mount — Tektro 160 mm rotors |
| Saddle | Verse Short Comp, steel rails, 145 mm width |
| Seatpost | Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset |
| Handlebar | Bontrager Comp alloy, 31.8 mm, 80 mm reach, 121 mm drop — width by frame size |
| Stem | Bontrager Elite, 31.8 mm, 7-degree — 70 mm (44) to 100 mm (56–58) |
| Bar tape | Trek gel cork |
Specifications apply to all sizes unless stated otherwise. Specifications are subject to change without notice; due to supply chain availability, compatible components may occasionally be substituted.
Sizing and geometry
Sizing
| Size | 44 | 49 | 52 | 54 | 56 | 58 |
|---|---|---|---|---|---|---|
| Rider height | 150–153 cm | 156–163 cm | 163–168 cm | 168–174 cm | 174–180 cm | 180–185 cm |
| Inseam | 71–73 cm | 74–77 cm | 76–79 cm | 78–82 cm | 81–85 cm | 84–87 cm |
All measurements in cm unless stated otherwise.
| Frame size | 44 | 49 | 52 | 54 | 56 | 58 |
|---|---|---|---|---|---|---|
| Seat tube | 39.0 | 44.0 | 47.5 | 50.0 | 52.5 | 54.8 |
| Seat tube angle | 74.6° | 74.6° | 74.2° | 73.7° | 73.3° | 73.0° |
| Head tube length | 9.5 | 12.3 | 14.5 | 16.0 | 17.5 | 19.5 |
| Head angle | 70.3° | 70.8° | 71.3° | 71.3° | 71.9° | 72.0° |
| Effective top tube | 50.7 | 51.6 | 53.0 | 54.2 | 55.4 | 56.7 |
| Bottom bracket drop | 8.0 | 8.0 | 8.0 | 8.0 | 7.8 | 7.8 |
| Chainstay length | 42.0 | 42.5 | 42.0 | 42.0 | 42.0 | 42.5 |
| Wheelbase | 98.3 | 100.1 | 100.3 | 101.0 | 101.8 | 102.2 |
| Standover | 65.7 | 71.7 | 73.5 | 75.4 | 77.6 | 79.6 |
| Frame reach | 36.0 | 36.8 | 37.1 | 37.4 | 37.7 | 38.0 |
| Frame stack | 51.0 | 54.0 | 56.1 | 57.5 | 59.1 | 61.1 |
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.
