2021

Trek Domane AL 4 Disc

Name: 2021 Trek Domane AL 4 Disc
Brand: Trek

General Endurance

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Colour / Gloss Trek Black/Matte Trek Black, Gloss Radioactive Red/Matte Black, Era White/Carbon Smoke

Size / 44cm, 49cm, 52cm, 54cm, 56cm, 58cm, 61cm

At a glance

The 2021 Trek Domane AL 4 Disc is a General and Endurance aluminium road bike. It is priced at $1,730 USD, comes in a range of sizes, including 44cm, 49cm, 52cm, 54cm, 56cm, 58cm, 61cm and a shimano drivetrain. The bike is part of Trek's Domane AL 4 Disc range of road bikes.

- Domane AL 4 Disc combines the smooth, comfortable qualities of an advanced alloy frame with the performance of higher-quality parts. It features an upgraded drivetrain and crisp hydraulic disc brakes for a fast road bike perfect for competitive group rides and even races.

It’s right for you if…
You plan to hop on your bike as much as possible, and even train for races and long charity rides. You want to invest in higher-quality performance parts that will keep pace with you as you continue to hone your road cycling skills.

The tech you get
A 2×10 (20 speed) Shimano Tiagra drivetrain has a wide range of gears for riding on any terrain. The lightweight aluminum frame has fender mounts and a stable Endurance Geometry for a confident ride, and a carbon fork that absorbs road vibration. Plus, tubeless ready rims and hydraulic disc brakes for stopping power in any conditions.

The final word
A solid, comfort-first road bike with upgrades on the parts that matter—like the drivetrain and brakes.

Domane AL 4 Disc is built for miles of fun, fast riding on pavement and even light gravel.

Why you’ll love it

- A light, comfortable frame and quality parts make it an awesome platform for long, fast group rides

- The unique IsoSpeed Carbon fork, which swoops forward toward the dropouts, absorbs vibrations from the road so your arms won’t fatigue as quickly

- Hydraulic disc brakes give you more precise and consistent stopping power in any conditions

- Bigger tire clearance lets you run wider tires for more traction and stability on rail trails and other light gravel roads

- DuoTrap S compatibility makes it easy to wirelessly track your rides, so you can set goals and watch yourself reach them

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Where To Buy

Trek

Trek Domane AL 4 Disc

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Reviews

Specifications

Frameset

Frame

100 Series Alpha Aluminum, tapered head tube, internal routing, fender mounts, DuoTrap S compatible, flat mount disc

Wheels

Hubs

Front: Formula RX-512 alloy, 6-bolt
Rear: Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub
Wheels

Front: 100 x 12mm thru-axle
Rear: 142 x 12mm thru-axle
Tires

[F] Bontrager R1 Hard-Case Lite, wire bead, 60 TPI, 700c x 32

Drivetrain

Chain

Shimano Tiagra HG54, 10 speed
Crank

Shimano Tiagra 4700
Bottom Bracket

Shimano RS500, 68mm, threaded external
Front Derailleur

Shimano Tiagra 4700, 31.8mm clamp
Rear Derailleur

Shimano Tiagra 4700, long cage, 34T max cog
Shifters

Shimano Tiagra R4725, short reach lever, 10 speed

Components

Brakeset

Shimano Tiagra hydraulic disc w/Shimano RT66, 160mm, 6-bolt rotors
Handlebar

Bontrager Comp VR-S, alloy, 31.8mm
Saddle

Bontrager P3 Verse Comp, steel rails, 155mm width
Seatpost

Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset
Stem

Bontrager Elite, 31.8mm, Blendr compatible, 7 degree
Grips

Bontrager Supertack Perf tape
Headset

FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom

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FAQ

Q: How much is a 2021 Trek Domane AL 4 Disc?

A 2021 Trek Domane AL 4 Disc is typically priced around $1,730 USD when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: What size 2021 Trek Domane AL 4 Disc should I get?

The 2021 Trek Domane AL 4 Disc comes in sizes 44cm, 49cm, 52cm, 54cm, 56cm, 58cm, 61cm. After measuring your height, use the size chart below to find the typical Trek Domane AL 4 Disc size for your height. Remember that these sizes are a general guide and bike sizes can vary between riders and bikes. The best way to find your size is to go for a test ride.

Rider Height (cm)	Rider Height (in)	Frame Size
148cm - 158cm	4'10" - 5'2"	XS
158cm - 168cm	5'2" - 5'6"	S
168cm - 178cm	5'6" - 5' 10"	M
178cm - 185cm	5'10" - 6'1"	L
185cm - 193cm	6'1" - 6'4"	XL
193cm - 198cm	6'4" - 6'6"	XXL

Endurance

General

Gravel

Touring

Triathlon

Cyclocross