Trek Domane AL 5 Gen 4 Road Bike - 2026

Domane AL 5 is a speedy and versatile 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, a 12-speed Shimano 105 drivetrain, top tube mounts, and an all-day road comfort geometry — Domane AL 5 is perfect for casual pedaling, group rides, fast commutes, and even venturing beyond paved paths to most gravel roads.

• Frame: 100 Series Alpha Aluminum with internal routing, tapered head tube, fender mounts, flat mount disc, UDH, 142x12mm thru axle

• Fork: Domane AL full carbon fork with tapered steerer, internal routing, fender mounts, flat mount disc

• Wheels: Bontrager Paradigm SL Tubeless Ready rims (21mm width, 24h)

• Hubs: Bontrager sealed bearing, centerlock disc (100x12 front / 142x12 rear)

• Tires: Bontrager R1 Hard-Case Lite, 700 x 32mm

• Max Tire Clearance: 32mm

• Drivetrain: Shimano 105 R7120, 12-speed

• Front Derailleur: Shimano 105 R7100

• Rear Derailleur: Shimano 105 R7100 (36T max cog)

• Crankset: Shimano 105 50/34 (size-specific lengths)

• Cassette: Shimano 105 11-34T, 12-speed

• Chain: Shimano SLX M7100, 12-speed

• Bottom Bracket: Shimano RS500 / RS501 BSA (size-dependent)

• Max Chainring Size: 1x up to 50T / 2x 50/34

• Brakes: Shimano 105 hydraulic disc, flat mount

• Rotors: Shimano RT70, 160mm

• Handlebar: Bontrager Comp alloy (size-specific widths, 80mm reach / 121mm drop)

• Stem: Bontrager Elite, Blendr compatible (size-specific lengths)

• Bar Tape: Trek EcoTack

• Seatpost: Bontrager Comp 27.2mm alloy (size-specific lengths)

• Saddle: Verse Short, 145mm

• Weight: 9.85 kg / 21.72 lbs (size 56)

• Max Weight Limit: 275 lbs / 125 kg (rider + bike + cargo)