Description
Domane AL 4 is a versatile road bike that’s ideal for riders looking to go faster and farther on every ride. Its Alpha Aluminum frame and all-day comfort geometry pair with an 11-speed Shimano Tiagra drivetrain for smoother shifting and better range than entry-level builds. With top tube mounts, larger tire clearance, and confident handling, it’s ready for everything from long group rides to adventurous gravel detours.
Features
- Right For Any Road: Room for bigger tires let you ride everything from smooth pavement to most gravel roads in comfort.
- Long-Haul Comfort: A more upright road riding position keeps you comfortable, confident, and efficient during long days in the saddle.
- Pack It Up, Pack It In: 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.
- High-Value Performance: 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.
- A better way to produce aluminum: Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.
- Modern ergonomics, premium integration: 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.
- Lightweight Design: A new full carbon fork and updated frame design helps shave around half a pound from the previous generation Domane AL Disc.
Specs
- Brake rotor: Shimano RT66, 6-bolt, 160mm
- Tire: Bontrager Kwaremont Comp, Hard-Case Lite, wire bead, 60 tpi, 700x32mm
- Hub rear: Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12mm thru axle
- Hub front: Formula RX-512 alloy, 6-bolt, 100x12mm thru axle
- Cassette: Shimano RS400, 11-36, 11 speed
- Rear derailleur: Shimano Tiagra R4000
- Front derailleur: Shimano Tiagra R4000, down swing
- Shifter: Shimano Tiagra R4020
- Max chainring size: 1x: 50T, 2x: 50/34
- Fork: Domane AL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle
- Rim: Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23mm width, Presta valve
- Skewer Front: Bontrager Switch chamfered thru axle
- Saddle: Verse Short Comp, steel rails, 145mm width
- Skewer Rear: Bontrager Switch chamfered thru axle, removable lever
- Frame: 100 Series Alpha Aluminum, tapered head tube, internal routing, fender mounts, flat mount disc, UDH, 142x12mm thru axle
- Bottom Bracket: Shimano RS501 BSA
- Chain: Shimano LG500, 9/10/11 speed
- Rotor Size: Max brake rotor sizes: 160mm front & rear
*Subject to change
