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  • Émonda ALR 4 Disc
NEW 2020

Émonda ALR 4 Disc

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$1,599.99 Model 28953

Émonda ALR 4 Disc is a lightweight aluminum road bike with powerful hydraulic disc brakes, a quality drivetrain, and a frame that looks and handles like a far more expensive carbon bike. It's perfect for new riders, racers, and anyone who values the better braking performance and tire clearance provided by disc brakes.

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It's right for you if...

You're a value-minded rider looking for a lightweight race bike with the added versatility and performance of disc brakes. You expect a lot of performance for your dollar, and want a quality ride you won't immediately outgrow. 

The tech you get

A lightweight 300 Series Alpha Aluminum frame with shaped tubes and Invisible Weld Technology for the looks and handling of a far more expensive carbon bike, a Shimano Tiagra groupset with 20 speeds, an Émonda carbon fork, powerful flat-mount hydraulic disc brakes, and internal cable routing in both the frame and fork.

The final word

Émonda ALR 4 Disc is the most affordable road disc model in the lineup, but it handles like a far more expensive bike and has the looks to match. It's an extremely capable race bike at a great value.

favorite_borderWhy you'll love it

  1. Carbon looks and handling, alloy price point: Invisible Weld Technology and shaped tubes for sleek looks, light weight, and incredible handling
  2. It climbs fast, corners on rails, and descends with confidence
  3. Disc brakes offer better braking performance and extra clearance for wider, more stable tires
  4. It shares the geometry of our highest-end carbon Émonda race bikes, and it gives you a ride quality that stands up in every way to far more expensive carbon bikes
  5. Internal cable routing extends the life of your cables and adds to the bike's sleek look

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Features

H2 fit

H2 is the optimal fit to put most riders, including many of our Pro Team athletes, in the right position for power and performance.

Invisible weld technology

Revolutionary welding technology creates a better connection with each tube junction, increasing strength while using less material.

Flat Mount disc brakes

All-new Flat Mount disc brakes are more elegant, lighter, smaller, and cleaner than traditional disc brakes, providing superior performance and stopping power under harsh conditions.

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Ultralight 300 Series Alpha Aluminum, Invisible Weld technology, tapered head tube, Control Freak internal routing, DuoTrap S compatible, flat mount disc, 142x12mm thru axle
Fork Émonda SL full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm thru axle
Wheels
Front Hub Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle
Rear Hub Bontrager alloy, sealed bearing, centerlock, Shimano 11-speed freehub, 142x12mm thru axle
Rim Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21mm width, presta valve
Spokes 14g stainless steel
Tire Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x25c
Drivetrain
Shifter Shimano Tiagra R4725, short reach lever, 10 speed
Front Derailleur Shimano Tiagra 4700, braze-on
Rear Derailleur Shimano Tiagra 4700, long cage
*Crank Size: 47, 50, 52
Shimano Tiagra 4700, 50/34, 170mm length
Size: 54, 56
Shimano Tiagra 4700, 50/34, 172.5mm length
Size: 58, 60, 62, 64
Shimano Tiagra 4700, 50/34, 175mm length
Bottom Bracket Shimano BB71, 86.5mm, PressFit
Cassette Shimano Tiagra HG500, 12-28, 10 speed
Chain Shimano Tiagra HG54, 10 speed
Components
Saddle Bontrager Montrose Comp, steel rails, 138mm width
*Seatpost Size: 47
Bontrager Approved, alloy, 27.2mm, 8mm offset, 250mm length
Size: 50, 52, 54, 56, 58, 60, 62, 64
Bontrager Approved, alloy, 27.2mm, 8mm offset, 330mm length
*Handlebar Size: 47
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 38cm width
Size: 50, 52
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 40cm width
Size: 54, 56
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width
Size: 58, 60, 62, 64
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width
Handlebar Tape Bontrager Supertack Perf tape
*Stem Size: 47
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length
Size: 50
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
Size: 52, 54
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
Size: 56, 58
Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length
Size: 60, 62
Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length
Size: 64
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 120mm length
Headset FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
Weight
Weight 9.40 kg / 20.73 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

Inseam

All measurements provided in cm unless otherwise noted.

Frame size number Wheel size 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
47 cm 700c 42.4 74.6° 11.5 71.2° 51.3 7.2 41 4.5 6.7 97.4 69.8 36.9 52.2
50 cm 700c 45.6 74.6° 13 72.1° 52.1 7.2 41 4.5 6.1 97.4 70.7 37.4 53.5
52 cm 700c 47.3 74.2° 14 72.8° 53.4 7.2 41 4.5 5.7 97.7 72.9 37.9 54.7
54 cm 700c 48.6 73.7° 15.5 73.0° 54.3 7 41 4.5 5.6 98.1 74.2 38.1 55.5
56 cm 700c 51.3 73.3° 17 73.5° 56 7 41 4 5.8 98.3 76.7 38.7 57.7
58 cm 700c 53.3 73.0° 19 73.8° 57.3 6.8 41.1 4 5.6 99.2 78.6 39.1 59.6
60 cm 700c 55.3 72.8° 21 73.9° 58.6 6.8 41.1 4 5.6 100.1 80.4 39.5 61.5
62 cm 700c 57.3 72.5° 23 73.9° 59.8 6.8 41.2 4 5.5 101 82.2 39.8 63.4
64 cm 700c 59.3 72.3° 25 74.0° 61 6.8 41.3 4 5.5 101.8 84.1 40.1 65.4

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