Trek Domane AL 5 Gen 4

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.

• A totally versatile and smooth ride that's a perfect choice for your first performance road bike
• Room for bigger tires let you ride everything from smooth pavement to most gravel roads in comfort
• Internal cable routing and an integrated cockpit provides premium looks and a clean aesthetic
• Rack, fender, and top tube mounts make it easy to carry all the gear you'll need
• Powerful disc brakes allow for super fast stopping power in all conditions

Lightweight design

A new full carbon fork and updated frame design helps shave around half a pound from the previous generation Domane AL Disc.

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.

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.

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.

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	Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle
Hub Rear	Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle
Rim	Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21mm width, Presta valve
Skewer Front	Bontrager Switch chamfered thru axle
Skewer Rear	Bontrager Switch chamfered thru axle, removable lever
Shifter	Shimano 105 R7120, 12 speed // Shimano 105 R7120, 12 speed
Front Derailleur	Shimano 105 R7100, 31.8mm clamp, down swing
Rear Derailleur	Shimano 105 R7100, 36T max cog
Crank	Shimano 105 R7100, 50/34, 170mm length
Bottom Bracket	Shimano RS501 BSA // Shimano RS500, 68mm, threaded external
Cassette	Shimano 105 7101, 11-34, 12 speed
Chain	Shimano SLX M7100, 12 speed
Brake	Shimano 105 hydraulic disc, flat mount
Brake Rotor	Shimano RT70, centerlock, 160mm
Saddle	Verse Short, steel rails, 145mm width
Seatpost	Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 250mm length
Handlebar	Bontrager Comp, alloy, 31.8mm, 80mm reach, 121mm drop, 38cm control width, 42cm drop width
Stem	Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length

Geometry Chart

B B Drop	8
Chainstay Length	42.5
Eff Top Tube	51.6
Frame Reach	36.8
Frame Size Number	49cm
Frame Stack	54
Head Angle	70.8°
Head Tube Length	12.3
Offset	5.3
Seat Tube	44
Seat Tube Angle	74.6°
Standover	71.7
Trail	6.6
Wheelbase	100.1
Wheel Size	700c