Domane ALR 4 Disc | Trek Bikes
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SALE 2018

Domane ALR 4 Disc

$1,399.99 $1,629.99 Model 17352

Domane ALR 4 Disc the gateway to disc brake-equipped road bikes in our endurance lineup. It has all the trims that make it a fast, efficient, and dependable ride—like an IsoSpeed decoupler and a full Shimano Tiagra drivetrain—with the added benefit of hydraulic disc brakes for additional tire clearance and better stopping power in all weather conditions. 

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It's right for you if...

You want a fast, dependable road bike that's still comfortable when the road gets rough, and you also want the reliability of disc brakes that work in all weather conditions.

The tech you get

A lightweight aluminum frame with rear IsoSpeed and 12mm thru axles, carbon IsoSpeed fork, 10-speed Shimano Tiagra groupset, wide-range 11-32 cassette that's great for climbing, hidden fender mounts, flat mount hydraulic disc brakes for all-weather stopping power, and wide 700x32 tires for added stability and traction.

The final word

Fast, efficient, and stable, with hydraulic disc brakes for more control. Domane ALR 4 Disc gives you the speed of a road bike built in our race heritage, plus the confidence and all-weather stopping power of disc brakes and the comfort of a rear IsoSpeed decoupler.

favorite_borderWhy you'll love it

  1. This bike is built to explore, and it can take you places you never thought possible on a road bike
  2. When you ride it, what you notice immediately is that it's smooth—and that makes you want to ride more
  3. Hydraulic disc brakes, 12mm thru axles, and 700x32 tires give you the confidence to take on more challenging rides
  4.  A lightweight frame and quality parts make it a totally appropriate platform for fast group rides
  5. No one likes ugly welds: Invisible Weld Technology for seamless looks and lighter weight

More options



  • Frameset

    200 Series Alpha Aluminum, IsoSpeed, Invisible Weld Technology, E2 tapered head tube, BB86.5, flat mount disc brakes, 12mm thru axle, hidden fender mounts, DuoTrap S compatible
    Domane carbon, E2 steerer, flat mount disc brakes, 12mm thru axle, hidden fender mount
  • Wheels

    Front hub
    Bontrager alloy sealed bearing, 12mm thru axle
    Rear hub
    Bontrager alloy centerlock, 142x12
    Bontrager Tubeless Ready
    Bontrager R1, 700x32c
    Max tire size
    32c Bontrager tires (with at least 4mm of clearance to frame)
  • Drivetrain

    Shimano RS405, 10 speed
    Front derailleur
    Shimano Tiagra
    Rear derailleur
    Shimano Tiagra
    Shimano Tiagra, 50/34 (compact)
    Bottom bracket
    Press Fit BB86.5
    Shimano Tiagra, 11-32, 10 speed
    Shimano Tiagra
    Not included
  • Components

    Bontrager Affinity Comp, chromoly rails
    Bontrager alloy, 2-bolt head, 27.2mm, 8mm offset
    Bontrager Race VR-C, 31.8mm
    Bontrager tape
    Bontrager Elite, 31.8mm, 7 degree, w/computer & light mounts
    Integrated, cartridge bearing, sealed, 1-1/8˝ top, 1.5˝ bottom
    Shimano RS505 flat mount hydraulic disc
  • Weight

    56 cm - 9.75 kg / 21.50 lbs
    Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).
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, colors, and materials.
Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.

Sizing & fit

The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Trek retailer.


Rider Height


All measurements provided in cm unless otherwise noted.

Frame size number A — Seat tube B — Seat tube angle C — Head tube length D — Head angle E — Effective top tube G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack Saddle rail height minimum (w/short mast) Saddle rail height maximum (w/tall mast)
44 cm 39.0 74.6° 9.5 70.3° 50.1 8.0 42.0 5.3 6.6 98.3 65.7 36.0 51.0 53.5 63.0

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