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Trek Domane AL 5 Gen 4 Road Bike 2027

Experience premium road performance with the Trek Domane AL 5 Gen 4, a remarkably smooth and capable road bike designed for riders who demand top-tier componentry without compromising on comfort. This model sits at the pinnacle of the alloy Domane lineup, marrying a lightweight 100 Series Alpha Aluminium frame with a relaxed, all-day endurance geometry. It is engineered to keep you feeling fresh and confident, whether you are tackling an ambitious century ride, joining a fast-paced weekend group checkout, or optimizing your daily commute. Integrated top tube, frame, and mudguard mounts unlock endless utility, turning this sleek road machine into a rugged explorer at a moment's notice.

Flagship Performance and Precise Shifting

The defining feature of this build is the mechanical 12-speed Shimano 105 drivetrain, a true benchmark in competitive cycling that brings pro-level shifting technology to an accessible price point. With 12 tightly spaced gears and an 11-34 cassette, you will experience incredibly precise, rapid gear changes and the perfect cadence for both steep, leg-burning alpine climbs and fast-paced flat sections. To complement this elite drivetrain, Shimano 105 hydraulic disc brakes and premium CentreLock rotors offer incredible modulation and effortless, fade-free stopping power in all weather conditions.

Uncompromised Compliance and Multi-Surface Versatility

Engineered to bridge the gap between pure road speed and rugged adventure, this bike features massive tire clearance that lets you transition seamlessly from smooth tarmac to light gravel pathways. Upfront, the specialized Domane AL carbon fork dampens fatiguing road buzz before it reaches your hands, protecting your upper body during long endurance sessions. Outfitted with high-quality Bontrager sealed-bearing hubs, tubeless-ready Paradigm rims, and the highly supportive Verse Short saddle, this machine is fully optimized to deliver a fast, plush, and exhilarating ride on whatever terrain you choose to conquer.

Features
  • Frame: 100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, flat-mount disc, UDH, 142x12 mm thru axle
  • Fork: Domane AL carbon, tapered carbon steerer, internal brake routing, mudguard mounts, flat-mount disc, 12x100 mm thru axle
  • Weight: 56 - 9.80 kg
  • Shifter: Shimano 105 R7120, 12-speed
  • Front Derailleur: Shimano 105 R7100, 31.8 mm clamp, down swing
  • Rear Derailleur: Shimano 105 R7100, 36T max cog
  • Crankset: Shimano 105 R7100, 50/34
  • Bottom Bracket: Shimano RS501 BSA
  • Cassette: Shimano 105 7101, 11-34, 12-speed
  • Chain: Shimano SLX M7100, 12-speed
  • Hub Front: Bontrager alloy, sealed bearing, CentreLock disc, 100x12 mm thru axle
  • Hub Rear: Bontrager alloy, sealed bearing, CentreLock disc, Shimano 11-speed freehub, 142x12 mm thru axle
  • Rim: Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23 mm width, Presta valve
  • Tyre: Bontrager Kwaremont Comp, Hard-Case Lite, wire bead, 60 tpi, 700x32 mm
  • Saddle: Verse Short Comp, steel rails, 145 mm width
  • Seatpost: Bontrager Comp, 6061 alloy
  • Handlebar: Bontrager Comp, alloy
  • Stem: Bontrager Elite
  • Brake Rotor: Shimano CL700, CentreLock, 160 mm
Specifications
Model
Domane AL 5 Gen 4
Bottom Bracket [Maker]
Shimano
Bottom Bracket Standard
BSA
Brakes [Kind]
Hydraulic Disc
Brakes [Maker]
Shimano
Brakes [Model]
Shimano 105
Cassette [Gearing]
11-34
Cassette [Maker]
Shimano
Cassette [Model]
Shimano 105 7101
Chain [Maker]
Shimano
Chain [Model]
Shimano SLX M7100
Chainring [Gearing]
50/34
Crank [Maker]
Shimano
Crank [Model]
Shimano 105 R7100
Discipline Compatibility
Road
E-Bike
No
F Hub [Maker]
Bontrager
F Hub [Model]
Bontrager alloy sealed bearing CentreLock
Family
Domane+
FD [Maker]
Shimano
FD [Model]
Shimano 105 R7100
Fenders Mounts
Yes
Fork [Axle Diameter]
12 mm
Fork [Axle Type]
12x100mm
Fork [Brake Type]
Disc
Fork [Maker]
Trek
Fork [Material]
Carbon
Fork [Model]
Domane AL carbon
Fork [Wheel Size]
700c
Frame [Hanger Standard]
UDH
Frame [Material]
Aluminium
Frameset
No
Gearing [Configuration]
2x
Gearing [Kind]
Conventional
Gender
Unisex
Handlebar [Kind]
Drop
Handlebar [Maker]
Bontrager
Handlebar [Material]
Aluminium
Handlebar [Shape]
Drop
R Hub [Maker]
Bontrager
R Hub [Model]
Bontrager alloy sealed bearing CentreLock
Rack Mounts
No
RD [Maker]
Shimano
RD [Model]
Shimano 105 R7100
Saddle [Maker]
Bontrager
Saddle [Width]
145 mm
Seatpost [Kind]
Round
Seatpost [Maker]
Bontrager
Seatpost [Material]
Aluminium
Shifters [Maker]
Shimano
Shifters [Model]
Shimano 105 R7120
Shifting
Mechanical
Stem [Maker]
Bontrager
Stem [Material]
Aluminium
Sub Family
Domane AL 5
Suspension Configuration
Rigid
Tires [Maker]
Bontrager
Tires [Width]
32 mm
Wheels [Configuration]
Front+Rear
Wheels [Kinds]
Tubeless Ready
Wheelset [Inner Width]
23 mm
Wheelset [Maker]
Bontrager
Wheelset [Material]
Aluminium
Wheelset [Model]
Bontrager Paradigm 23
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Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

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About Trek

The best bike, ridden everywhere.

Founded in a Wisconsin barn in 1976, Trek has grown into one of the world's most recognised bicycle brands without losing the obsession that started it all: build the best bike, ride it further, share it with everyone.

Trek believes the bicycle is a simple solution to many of the world's most complicated problems. Every bike Trek builds — from the Madone race weapon to the Marlin trail bike — is made with that conviction. More riders, more often, on better bikes.

Why buy your bike from Sigma Sports?