The Trek Domane AL 4 shares the same comfort-focused aluminium frame and carbon fork as the AL 2, stepped up to an 11-speed Shimano Tiagra groupset for a wider gear range and smoother shifting.
WHO THIS BIKE SUITS
You want more gears than the entry-level AL 2 offers for varied terrain.
You're riding regularly enough that Tiagra's extra range and shift quality are worth the step up.
IF YOU'RE LOOKING FOR SOMETHING DIFFERENT
If budget is the priority, the Domane AL 2 gives you the same frame and fork for less.
If you want a carbon frame, look at the Domane SL range instead.
WHERE IT SITS IN THE RANGE
The AL 4 sits at the top of the aluminium Domane range — same frame and fork as the AL 2, with an 11-speed Shimano Tiagra groupset for a genuine step up in shifting and gear range.
Full Domane AL range: AL 2 — AL 5.
HOW IT RIDES
Nothing changes in how the bike carries you over rough ground compared to the AL 2 — same comfortable, confidence-inspiring platform underneath you. What you'll notice is Tiagra's crisper shifting and the wider 11-36 cassette making climbs feel easier on longer routes.
THE FINAL WORD
If you want endurance comfort with a wider gear range than the entry-level bike offers, the Domane AL 4 is where we'd point you.
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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
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
Headset: Integrated, tapered, internal cable routing through headset
Bottom bracket: Shimano RS501 BSA
Shifters: Shimano Tiagra R4000
Rear derailleur: Shimano Tiagra R4000
Crank: Shimano Tiagra R4000, 50/34, 170 mm length
Cassette: Shimano RS400, 11-36, 11-speed
Chain: Shimano LG500
Brakeset: Shimano Tiagra BR-RS405, hydraulic disc
Rotor: Shimano RT66, 6-bolt, 160 mm
Tyres: Bontrager Kwaremont Comp, Hard-Case Lite, wire bead, 60 tpi, 700x32 mm
Rims: Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23 mm width, Presta valve
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
Handlebar: Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop
Stem: Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
Saddle: Verse Short Comp, steel rails, 145 mm width
Seatpost: Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length
Not sure if this is the right bike for you? Get in touch and we'll help you choose with confidence.
Personalised Bike Consultation
Not sure which model is perfect for you? Our expert team at All Ride Now in Midhurst, West Sussex is here to help you choose with confidence.
- Will you be riding mainly on or off-road?
- Do you prefer an upright or sportier riding position?
- Are you looking for longer range, lighter weight, or a more comfortable feel?
Through a friendly consultation – in-store, by phone, live chat or email – we’ll help you narrow down your options and find the bike that best fits your needs.
