Short Description
The Trek Domane AL 4 Gen 4 is a fast, comfortable and versatile endurance road bike designed for riders who want to go further on tarmac, commute quickly or explore light gravel roads. Featuring a lightweight Alpha Aluminium frame, full carbon fork, Shimano Tiagra 2x11-speed drivetrain and hydraulic disc brakes, it delivers dependable performance with all-day comfort.

Key Features

• Alpha Aluminium Frame: Lightweight 100 Series Alpha Aluminium construction combines durability, efficiency and confident handling
• Full Carbon Fork: Domane AL carbon fork helps reduce weight and absorb road vibration for improved comfort
• Shimano Tiagra 2x11 Drivetrain: Smooth and reliable shifting with a wide 50/34T crankset and 11-36T cassette for versatile road riding
• Hydraulic Disc Brakes: Powerful and consistent braking performance provides confident control in wet and dry conditions
• Comfort-Focused Geometry: Domane endurance geometry delivers a stable, efficient and more upright riding position for longer days in the saddle
• All-Road Versatility: Generous tyre clearance allows the Domane AL 4 to handle smooth roads, rough lanes and light gravel routes
• Adventure Ready: Integrated mounts for mudguards, racks, bottles and a top tube bag make it ideal for commuting, touring and long-distance rides
• Tubeless Ready Wheels: Bontrager Paradigm 23 wheels are Tubeless Ready, allowing future upgrades for improved comfort and puncture protection

Product Overview
The Trek Domane AL 4 Gen 4 is an endurance road bike built for riders who value comfort, versatility and dependable performance. Its lightweight 100 Series Alpha Aluminium frame is paired with a full carbon Domane fork to help smooth out rough road surfaces while maintaining responsive handling. The relaxed endurance geometry provides a comfortable riding position that is well suited to long-distance rides, sportives, commuting and everyday road cycling.

The updated Shimano Tiagra 2x11-speed drivetrain offers a wide range of gears, combining a 50/34T compact crankset with an 11-36T cassette to provide efficient gearing for fast roads and steep climbs. Hydraulic disc brakes deliver reliable stopping power in changing weather conditions, while the Bontrager Paradigm 23 Tubeless Ready wheelset and 32 mm Bontrager Kwaremont Comp tyres provide a comfortable and confident ride.

Practical mounting points for mudguards, a rear rack, water bottles and a top tube bag give the Domane AL 4 excellent versatility beyond traditional road riding. Whether you're heading out for a weekend group ride, tackling your first sportive, commuting to work or exploring quieter back roads and gravel sections, the Domane AL 4 is designed to perform without sacrificing comfort.

Specifications

• Brand: Trek
• Model: Domane AL 4 Gen 4
• Model Year: 2027
• Product Type: Endurance road bike
• 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
• Wheel Size: 700c
• Wheels: Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23 mm width
• Front Hub: Formula RX-512 alloy, 6-bolt, 100x12 mm thru axle
• Rear Hub: Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12 mm thru axle
• Tyres: Bontrager Kwaremont Comp, Hard-Case Lite, wire bead, 60 TPI, 700x32 mm
• Shifters: Shimano Tiagra R4020, 11-speed
• Front Derailleur: Shimano Tiagra R4000
• Rear Derailleur: Shimano Tiagra R4000
• Crankset: Shimano Tiagra R4000, 50/34T
• Cassette: Shimano RS400, 11-36T, 11-speed
• Chain: Shimano LG500
• Brakes: Shimano Tiagra hydraulic disc
• Rotors: Shimano RT66, 6-bolt, 160 mm
• Handlebar: Bontrager Comp alloy, 31.8 mm, 80 mm reach, 121 mm drop, flared drops
• Stem: Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree
• Seatpost: Bontrager Comp 6061 alloy, 27.2 mm, 8 mm offset
• Saddle: Bontrager Verse Short Comp, steel rails, 145 mm width
• Weight: Approx. 10.1 kg
• Sizes: 44, 49, 52, 54, 56, 58, 61
• Colours: Fury Red, Gloss Supernova, Lavender Haze, Matte Dark Star Black

Ideal For

• Endurance road riding and long-distance cycling
• Sportives, fitness rides and weekend group rides
• Fast commuting and everyday road cycling
• Riders looking for a comfortable first performance road bike
• Light gravel and mixed-surface adventures
• Touring and longer rides using racks or bikepacking luggage

What’s Included

• 1 × Trek Domane AL 4 Gen 4 road bike
• Bontrager Paradigm 23 Tubeless Ready wheelset
• Bontrager Kwaremont Comp 700x32 mm tyres

Care & Notes
Bike specifications can vary by frame size and manufacturers may update components without notice. Check tyre pressures, brake operation and drivetrain condition regularly. Tubeless conversion may require compatible tubeless tyres, valves and sealant. For the best comfort, handling and performance, ensure the bike is correctly sized and professionally set up before riding.

Why Buy From LK Bikes
LK Bikes offers quality bikes and cycling equipment from trusted brands, supported by expert advice, professional setup, reliable service and strong aftersales support.