Trek Domane AL 4 Gen 4 — Road Bike

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  • Overview
  • 100 Series Alpha Aluminium frame, Shimano Tiagra 2×10 drivetrain, hydraulic disc brakes, and clearance for up to 38mm tyres. Endurance geometry for all-day road comfort. In stock at both Fresh Air Kelowna locations.

Product details

IN STORE PICKUP OR LOCAL DELIVERY ONLY

Whether you're setting out for a long Okanagan valley road loop or joining a local gran fondo, having a bike with comfortable geometry and reliable all-weather braking makes the difference between surviving the ride and enjoying it. The Trek Domane AL 4 Gen 4 is built around Trek's 100 Series Alpha Aluminium frame with a full carbon fork, endurance geometry, and a Shimano Tiagra 2×10 drivetrain — a package that delivers genuine road bike performance at an accessible price point. Clearance for up to 38mm tyres, rack and fender mounts, and internal cable routing give it the versatility to go well beyond pure tarmac.

 

 

KEY FEATURES

Frame: Trek 100 Series Alpha Aluminium, tapered head tube, internal cable routing, fender and rack mounts, flat-mount disc, UDH, 142×12mm thru-axle — advanced tube shaping delivers a clean, high-end aesthetic at an aluminium price point

Fork: Domane AL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat-mount disc, 12×100mm thru-axle — full carbon construction takes the edge off road buzz

Drivetrain: Shimano Tiagra 4700, 2×10 speed; 50/34 crankset, 11-32T cassette — wide-range gearing for Okanagan climbs and fast valley descents

Brakes: Shimano Tiagra R4720 hydraulic disc levers with Shimano RT66 6-bolt rotors, 160mm front and rear — confident stopping in all weather conditions

Wheels / Tyres: Bontrager Paradigm SL Tubeless Ready rims (21mm inner width, 24-hole); Bontrager R1 Hard-Case Lite 700×32mm tyres — tubeless-ready out of the box with puncture protection built in

Cockpit: Bontrager Comp alloy handlebar (31.8mm, 4cm of drop-to-hood flare for added control); Bontrager Elite stem (31.8mm, Blendr-compatible, 7-degree); Bontrager Supertack Perf bar tape

Seatpost: Bontrager Comp 6061 alloy, 27.2mm, 8mm offset; Verse Short saddle, 145mm width

Weight: 10.35 kg / 22.82 lbs (56cm — confirmed)

Max tyre clearance: 38mm without mudguards, 35mm with mudguards — ready for gravel roads and mixed-surface touring

WHO IS THIS FOR

The Domane AL 4 Gen 4 is aimed at newer road cyclists and returning riders who want a genuinely capable endurance road bike without paying carbon fibre prices. Its upright geometry, 32mm tyres, and hydraulic disc brakes make it confidence-inspiring on longer days and in variable Okanagan weather, while the rack and fender mounts mean it can double as a capable commuter or loaded day-tripper when needed. Riders who want to grow into road cycling — building toward gran fondos or longer valley loops — will appreciate that this bike won't become a limiting factor as their fitness develops.

Our team at Fresh Air will help you find the right fit in-store at both Kelowna locations. Stop by to work with one of our experienced staff members, or call 250-763-3425.

HOW TO SET UP

As a certified Trek dealer, our team can dial in your contact points before you leave — saddle height, handlebar reach, and cleat alignment (if applicable) all have a significant impact on how the Domane AL 4 feels over longer distances. We'll also set tyre pressure for the conditions you're riding: the Bontrager R1 Hard-Case Lite tyres run a wide pressure range and the right setting changes the feel of the bike considerably on Okanagan road surfaces. If you're planning to run the bike tubeless, our mechanics can set that up in-store as well. We're also happy to walk you through the Blendr-compatible stem interface if you're looking to add a computer or accessory mount.

Drop into Fresh Air Pandosy (555 Groves Ave) or Fresh Air Dilworth (1656 Dilworth Drive), or book an appointment online.

GEOMETRY AND SIZING

Frame geometry and sizing details for the Trek Domane AL 4 Gen 4 are available on the Trek website. Trek offers the Domane AL 4 Gen 4 in seven sizes: 44, 49, 52, 54, 56, 58, and 61. Our team at Fresh Air can help you find the right frame size based on your height, inseam, and riding style — come in to either Kelowna location and we'll get you dialled in.

Trek geometry chart: https://www.trekbikes.com/ca/en_CA/bikes/road-bikes/performance-road-bikes/domane/domane-al/domane-al-4-gen-4/p/41607/

TEST RIDE

The best way to know if the Domane AL 4 is right for you is to see it in person. Come visit us at Fresh Air Pandosy or Fresh Air Dilworth — our team is happy to walk you through the build, help you size up, and talk through your riding plans.

FAQ

Q1: What size Trek Domane AL 4 Gen 4 do I need?
Trek offers the Domane AL 4 Gen 4 in seven sizes (44 through 61), and the right choice depends on your height, inseam, and how upright or stretched-out you prefer to ride. As a general guide, riders in the 162–170cm range often start with a 52 or 54, while those in the 175–183cm range typically look at 56 or 58 — but stack, reach, and riding style all factor in. For the most accurate fit, visit the Trek geometry chart at the link in the Geometry & Sizing section above, and come into either Fresh Air Kelowna location so our team can confirm the right size for you.

Q2: Is the Trek Domane AL 4 Gen 4 right for Okanagan valley road riding?
Absolutely. The Domane AL 4's endurance geometry — with a taller stack and shorter reach than a race-oriented road bike — is well suited to long valley road routes where comfort over hours matters as much as speed. Hydraulic disc brakes handle descents with confidence, and the 32mm tyres provide cushion on rougher chip-seal. Whether you're tackling a local gran fondo or just putting in regular kilometres on Okanagan backroads, this bike has the range.

Q3: What groupset is on the Domane AL 4 Gen 4 and is it upgradeable?
The Domane AL 4 Gen 4 ships with a Shimano Tiagra 4700 2×10-speed groupset — a proven, reliable choice for endurance road riding. The frame uses Trek's UDH (Universal Derailleur Hanger) and is built around standard BSA threading and 12mm thru-axles, so it's compatible with a range of drivetrain upgrades down the road. Our team at Fresh Air can advise on upgrade paths if your riding evolves.

SPECS

 

FRAMESET

Frame with Fork: 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, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length

Size: 49 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length

Size: 52, 54 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length

Size: 56, 58 Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 100 mm length

Size: 61 Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 110 mm length

Brake: Shimano 105 hydraulic disc, BR-R7170 flat mount caliper, resin pad w/fin

Brake Rotor: Shimano RT66, 6-bolt, 160mm

Rotor Size: Max brake rotor sizes: 160mm front & rear

 

 

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