2025 Trek Domane AL 2 Gen 4 – Road Bike
Specifications
| Specification | Details | 
| Model | Domane AL 2 Gen 4 | 
| Vehicle Category | Road Bike | 
| Application | Endurance road riding, group rides, fast commutes, light gravel | 
| Starting Price (2025) | $1,199.99 USD | 
| Color Options | Matte Lithium Grey, Crimson | 
| Sizes | 44, 49, 52, 54, 56, 58, 61 | 
Frame & Drivetrain
| Specification | Details | 
| Frame | 100 Series Alpha Aluminum, tapered head tube, internal routing, 3S chain keeper, T47, rack and mudguard mounts, flat mount disc, 142x12mm thru axle, DuoTrap S-compatible | 
| Fork | Domane carbon, tapered carbon steerer, internal brake routing, mudguard mounts, flat mount disc, 12x100mm thru axle | 
| Drivetrain Compatibility | Shimano Claris, 2x8-speed | 
| Dropouts | 142x12mm thru axle (R), 12x100mm thru axle (F) | 
| Crank | Shimano Claris R2000, 50/34 (compact), 165mm (44cm, 49cm), 170mm (52cm, 54cm), 172.5mm (56cm, 58cm, 61cm) | 
| Chain | Shimano Claris HG71, 8-speed | 
| Rear Derailleur | Shimano Claris R2000, medium cage, 8-speed | 
| Front Derailleur | Shimano Claris R2000, 31.8mm clamp, 8-speed | 
| Shifters | Shimano Claris R2000, 8-speed | 
| Cassette | Shimano HG31, 11-32, 8-speed | 
Components & Features
| Specification | Details | 
| Seating | Bontrager Verse Comp, steel rails, 145mm width | 
| Cargo Capacity | Rack and mudguard mounts, top tube bag mounts | 
| Wheels/Tyres | Bontrager Affinity, aramid bead, 60 tpi, 700x32c | 
| Wheel Size | 700c | 
| Brakes | Tektro C550, mechanical disc, 160mm rotors | 
| Brake Levers | Integrated with shifters | 
| Handlebar | Bontrager Comp VR-C, alloy, 31.8mm, 38cm (44cm, 49cm), 40cm (52cm), 42cm (54cm, 56cm, 58cm, 61cm) | 
| Stem | Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm (44cm, 49cm), 80mm (52cm), 90mm (54cm, 56cm), 100mm (58cm, 61cm) | 
| Headset | Integrated, cartridge bearing, sealed | 
| Saddle | Bontrager Verse Comp, steel rails, 145mm width | 
| Seatpost | Bontrager alloy, 27.2mm, 12mm offset, 330mm length | 
| Grips | Bontrager Supertack tape | 
| Front Hub | Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle | 
| Rear Hub | Bontrager alloy, sealed bearing, centerlock disc, Shimano 8/9/10-speed freehub, 142x12mm thru axle | 
| Rims | Bontrager Affinity, double wall, 21mm rim width, Presta valve | 
| Spokes | 14g stainless steel, black | 
| Exterior Features | Rack and mudguard mounts, top tube bag mounts, tubeless ready wheels | 
| Weight | 10.55 kg / 23.26 lbs (size 56) | 

