Domane AL 4 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 10-speed Shimano Tiagra drivetrain, top tube mounts, and an all-day road comfort geometry — Domane AL 4 is perfect for casual pedaling, group rides, fast commutes, and even venturing beyond paved paths to most gravel roads.
A new full carbon fork and updated frame design helps shave around half a pound from the previous generation Domane AL Disc.
Room for bigger tires let you ride everything from smooth pavement to most gravel roads in comfort.
A more upright road riding position keeps you comfortable, confident, and efficient during long days in the saddle.
Mounts for a top tube bag, rack, fenders and water bottles let you carry everything you need for day-long adventures, fast commutes, and anything in between.
A modern handlebar with 4cm of flare between the drops and hoods put you in a more comfortable position, and new hidden cable routing offers premium integration typically found on more expensive models.
Domane AL Disc is built in Trek's road race heritage, which means it's a road bike you won't outgrow as your rides get longer and faster.
| 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 |
| Tire |
Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32mm |
| Hub Front |
Formula RX-512 alloy, 6-bolt, 100x12mm thru axle |
| Hub Rear |
Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12mm thru axle |
| Rim |
Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21mm width, Presta valve |
| Spokes |
14g stainless steel, black |
| Skewer Front |
Bontrager Switch chamfered thru axle |
| Skewer Rear |
Bontrager Switch chamfered thru axle, removable lever |
| Shifter |
Shimano Tiagra R4720, 10 speed |
| Front Derailleur |
Shimano Tiagra 4700, 31.8mm clamp |
| Rear Derailleur |
Shimano Tiagra 4700, long cage, 34T max cog |
| Crank |
Shimano Tiagra 4700, 50/34, 165mm length |
| Bottom Bracket |
Shimano RS501 BSA |
| Cassette |
Shimano HG500, 11-32, 10 speed |
| Chain |
Shimano Tiagra HG54, 10 speed |
| Brake |
Shimano Tiagra hydraulic disc, flat mount |
| Brake Rotor |
Shimano RT66, 6-bolt, 160mm |
| Saddle |
Verse Short, steel rails, 145mm width |
| Seatpost |
Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 250mm length |
| Handlebar |
Bontrager Comp VR-S, alloy, 31.8mm, 81mm reach, 118mm drop, 38cm width // Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 36cm control width, 40cm drop width |
| Stem |
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length |