Trek Domane AL 4 (Gen 4) Performance Road Bike 2027

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.

SPECIFICATIONS

*Please note - spec applies to all sizes unless listed separately

Frameset
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

Weight
Weight
56 - 10.10 kg / 22.27 lbs
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).

Drivetrain
Shifter
Shimano Tiagra R4020
Front derailleur
Shimano Tiagra R4000, dolní tah.
Rear derailleur
Shimano Tiagra R4000
*Crank
Size: 44, 49, 52, 54, 56
Shimano Tiagra R4000, 50/34, 165mm length
Size: 58, 61
Shimano Tiagra R4000, 50/34, 170mm length
Bottom bracket
Shimano RS501 BSA
Cassette
Shimano RS400, 11-36, 11 speed
Chain
Shimano LG500
Max chainring size
1x: 50T, 2x: 50/34

Wheels
Hub front
Formula RX-512 alloy, 6-bolt, 100x12mm thru axle
Skewer front
Bontrager Switch chamfered thru axle
Hub rear
Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12mm thru axle
Skewer rear
Bontrager Switch chamfered thru axle, removable lever
Rim
Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23mm width, Presta valve
Tire
Bontrager Kwaremont Comp, Hardcase Lite, wire bead, 60 tpi, 700x32mm

Components
Saddle
Verse Short Comp, steel rails, 145mm width
*Seatpost
Size: 44, 49
Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 250 mm length
Size: 52, 54, 56, 58, 61
Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length
*Handlebar
Size: 44
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 36cm control width, 40cm drop width
Size: 49, 52
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 38cm control width, 42cm drop width
Size: 54, 56, 58
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 40cm control width, 44cm drop width
Size: 61
Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 42cm control width, 46cm drop width
Handlebar tape
Trek EcoTack
*Stem
Size: 44
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length
Size: 49
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
Size: 52, 54
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
Size: 56, 58
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length
Size: 61
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 110mm length
Brake rotor
Shimano RT66, 6-bolt, 160mm
Rotor size
Max brake rotor sizes: 160mm front & rear

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.