Trek Domane AL 3 review

A lot of road bike for not so much money

Our rating 
3.5 out of 5 star rating 3.5
GBP £750.00 RRP | USD $900.00

Our review

Save your money for travel and good food. This is all the road bike you really need to enjoy cycling
Buy if, You're looking for a way to take on big miles without a big payout
Pros: A ride reminiscent of Trek’s carbon Domane model, fantastic value, luxurious touches, good looks
Cons: Stopping power let down by sub-par brake pads
Skip to view product specifications

Among sub-$1000/£1,000 road bikes, Trek’s Domane AL 3 offers a fantastic, but not perfect, road bike capable of pleasing both neophyte and seasoned cyclists alike. Its aluminum frame, carbon fork and Shimano Sora running gear take you anywhere a more expensive might, but with more money left over for mid-ride snacks, riding accessories or investing in bitcoin.


Latest, lightest and most aero get the most attention in the world of cycling, but what about a bike for the average rider who isn’t interested in taking out a second mortgage in order to buy a bike?

Thankfully, budget bikes are alive and well. And Trek’s Domane AL 3 represents one of the best sub-$1000/£1,000 bikes on the market.

Trek Domane AL 3 frame and fork

The Domane AL 3 is an aluminum steed with endurance geometry and rim brakes. (While disc brakes are increasingly popular on road bikes, in this price point, you’ll get a lot more for your money if you stick with rim brakes) Trek’s Alpha Aluminum frame is the heart of the bike.

With sculpted tube shapes, a threaded bottom bracket, clean external cable management and a 27.2mm seatpost, the Domane frame ticks a lot of boxes for those in search of an easily serviceable bicycle.

The matte Quicksilver finish outshines the Domane’s price tag. Clean welds and shapely aluminum tubes enhance the look
Nick Legan

Interesting derailleur cable routing, with both front and rear derailleur cables going to the non-driveside of the down tube, keeps the bike looking clean, especially in profile. At the front of affairs is the IsoSpeed Carbon fork, though with an alloy steerer, that Trek claims absorbs road vibrations more than other designs.

The frame and fork both feature healthy tire clearance around the stock Bontrager T2 28mm tires. I would guess a pair of 30mm tires would fit with ease. This would enhance the bike’s already smooth ride and lend increased confidence to newer riders and those looking to take in a few dirt segments.

While not quite as efficient at absorbing bumps as the Domane SLR — Trek’s more expensive carbon version — the AL 3 is comfortable. The endurance geometry delivers predictable handling that likes a wide, sweeping cornering technique. While hard pedaling efforts certainly don’t seem wasted, the bike’s extra heft reminds you that this is no flyweight. Better to diesel your way on the Domane AL 3, than it is to thrash around.

Fender mounts front and rear make the Domane an ideal commuter or wet-weather bike. Rear rack mounts further that versatility.

Running gear

Shimano’s Sora group delivers big on quality shifting and looks. While the 18-speed group is several steps below its more premium groupset siblings, the budget group sees many trickle-down features, such as shifter ergonomics and a super-stiff crankset.

Heck, Sora’s STI brake/shift levers even get reach adjustment to tailor the fit for larger or smaller hands.

The gearing range is what we’ve come to expect on endurance bikes, with a 50/34 compact crank and an 11-28 cassette. If you’re accustomed to an 11-speed group, you may notice the larger jumps between cogs, but, on the whole, shifting is good both front and rear.

A great upgrade though would be a set of nicer cables. Most bikes arrive with bargain basement cables and housing. To improve nearly any bike on a shop’s showroom floor, consider slicker, higher quality options.

Shifting, both front and rear, was crisp, though a set of higher quality cables would improve shifting action even more
Nick Legan

While the drivetrain impressed, the bike is let down by lacklustre brakes. Trek’s spec-sheet lists them simply as ‘alloy dual-pivot’. No brand name and described so abstractly that they seem to have been an afterthought.

A set of better brake pads would likely remedy the situation as the brake action felt fine. But that would raise the cost of the Domane AL 3 closer to $1,000.

While the Bontrager wheels on the Domane are nothing exceptional, the fact that they are tubeless ready was much appreciated
Nick Legan

Bontrager, Trek’s house brand, handles the wheels, a set of aluminum clinchers. Unexpectedly, the rims are tubeless ready, a nice option for those in areas where punctures are frequent. Sealed bearing hubs keep the wheels rolling and a pair of Bontrager T2 28mm tires adorn the rims.

The zero-setback, alloy seatpost, 31.8mm handlebar and stem are all aluminum Bontrager models. All are wonderfully functional, with plenty of comfy hand positions on the variable-radius handlebar and an easy-to-adjust seatpost.

The Bontrager Montrose Comp is a well-cushioned model but it just didn’t suit me. As is often the case, expect to swap it before you leave the dealer.

Aesthetically speaking

The matte Quicksilver finish on the Trek is attractive. The silver and blue play well together and luxurious handlebar tape with subtle blue accents completes the package. The AL 3 is also offered in a black/red combo.

The frame and fork also wipe up very cleanly, unlike some matte paintwork I’ve encountered over recent years. The joints on the aluminum frame may have been a bit big, but certainly didn’t venture into chunky territory.

A threaded bottom bracket is a welcome sight
Nick Legan

While many sub-$1000-bike reviews are aimed at beginner cyclists, there is every reason for veteran riders to also consider Trek’s Domane AL 3. With its fender mounts and affordable drivetrain it would be an ideal winter training bike or handily replace a tired steel bike from the 90s.

The handling is made for long days in the saddle and the bike looks far nicer than its price tag would indicate.

An easy-to-use, two-bolt, aluminum seatpost holds Bontrager’s well-cushioned Montrose Comp saddle
Nick Legan

I love how normal the Domane is. It uses an 1 1/8” threadless steerer tube, a threaded bottom bracket, quick release dropouts and fork ends, 31.8mm handlebar, 27.2 seatpost diameter, external cable routing, standard brake caliper mounting. This makes it extremely serviceable — for new cyclists and mechanics alike — with parts that are prevalent and easy to replace or upgrade.

Aluminum has gotten a bad rap over the years, but it still delivers exceptional value and, in the case of the Domane, a great ride.


The Domane AL 3, with a set of better brake pads, democratizes the joy of cycling, making it more approachable than ever.

Product Specifications


Name Domane AL 3
Brand Trek

Available Sizes 47cm 50cm 52cm 54cm 56cm 58cm
Rear Tyre Bontrager T2, 700x28c
All measurements for frame size tested 56cm
Reach (cm) 37.7
Stack (cm) 59.1
Head Tube (cm) 17.5
Wheelbase (cm) 100.8
Top Tube (cm) 55.4
Seat Tube (cm) 52.5
Chainstays (cm) 42
Stem Bontrager Elite, 31.8mm, 7 degree, w/computer & light mounts
Shifters Shimano Sora, 9 speed
Seatpost Bontrager alloy, 2-bolt head, 27.2mm, 8mm offset
Seat Angle 73.3
Saddle Bontrager Montrose Comp, chromoly rails
Rims Bontrager Tubeless Ready
Rear Hub Alloy
Bottom Bracket Sealed cartridge
Front Derailleur Shimano Sora
Brakes Alloy dual-pivot
Cassette Shimano Sora, 11-28, 9 speed
Chain Shimano Sora
Cranks Shimano Sora, 50/34 (compact)
Fork Domane carbon, hidden fender mounts
Frame Material 100 Series Alpha Aluminum, DuoTrap S compatible, hidden fender mounts, rack mounts
Front Hub Alloy
Rear Derailleur Shimano Sora
Front Tyre Bontrager T2, 700x28c
Grips/Tape Bontrager tape
Handlebar Bontrager Race VR-C, 31.8mm
Head Angle 71.9
Headset Type Integrated
Pedals Wellgo nylon body w/alloy cage, toe clip & strap
Bottom-bracket drop (cm) 7.8