Emonda ALR 5

The third-generation Trek Emonda ALR is a dedicated aluminum road racing frameset designed to closely mimic the brand's carbon climbing bikes. Moving away from the more relaxed fits of its predecessors, this iteration adopts an aggressive posture and aerodynamic tube shaping aimed squarely at criterium racers and fast club riders. Trek modernized the platform by dropping rim brake compatibility entirely and routing cables through the upper headset bearing for a cleaner cockpit. The frame also transitions to a threaded T47 bottom bracket for easier maintenance. Stripped of fender mounts and officially capped at a conservative 28mm tire clearance, the Emonda ALR is unapologetically focused on paved performance. It serves as a high-value alternative for privateer racers who want the geometry and handling of a flagship carbon bike without the associated replacement costs if they crash.

$2,500Gen Gen 3

Build

Size

Stack	541mm
Reach	386mm
Top tube	543mm
Headtube length	131mm
Standover height	744mm
Seat tube length	496mm

Fit and geometry

Trek builds the Emonda ALR around its H1.5 geometry, the same blueprint used for its flagship carbon race bikes. This marks a departure from the previous generation's more upright H2 fit, placing the rider in a longer, lower, and more aerodynamic posture. The setup is distinctly race-oriented, demanding a flexible lower back and a forward-leaning center of gravity.

Despite the aggressive rider positioning, the handling geometry leans slightly toward high-speed stability. A 73.5-degree head tube angle on a size 56cm frame is paired with a moderate fork trail and a 70mm bottom bracket drop, keeping the rider's weight centered. This combination yields steering that is quick enough for tight criterium corners but avoids feeling nervous on fast, sweeping descents.

The cockpit relies on a conventional two-piece aluminum handlebar and stem. While the cables route internally through the headset bearing, the standard 31.8mm bar clamp and 1-1/8-inch steerer tube mean riders can easily swap stem lengths or bar widths to dial in their fit without needing proprietary components.

Full specs

Frameset

Frame

Ultralight 300 Series Alpha Aluminum, Invisible Weld technology, tapered head tube, internal cable routing, flat mount disc, 142x12mm thru axle

Fork

Émonda ALR full carbon, tapered carbon steerer, internal brake routing, flat mount disc, 12x100mm thru axle

Weight

9.17 kg / 20.22 lbs (size 56, with tubes)

Groupset

Shift levers

Shimano 105 R7120, 12-speed

Front derailleur

Shimano 105 R7100, braze-on, down swing

Rear derailleur

Shimano 105 R7100, 36T max cog

Cassette

Shimano 105 7101, 12-speed, 11-34T

Chain

Shimano SLX M7100, 12-speed

Crankset

Shimano 105 R7100, 50/34 (Size 47: 165mm; 50/52: 170mm; 54/56/58: 172.5mm; 60/62: 175mm)

Bottom bracket

Praxis, T47 threaded, internal bearing

Front brake

Shimano 105 hydraulic disc, flat mount

Rear brake

Shimano 105 hydraulic disc, flat mount

Front rotor

Shimano RT70, Center Lock, 160mm

Rear rotor

Shimano RT70, Center Lock, 160mm

Wheelset

Front wheel

Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21mm width, Presta valve; Bontrager alloy, sealed bearing, Center Lock disc, 100x12mm thru axle

Rear wheel

Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21mm width, Presta valve; Bontrager alloy, sealed bearing, Center Lock disc, Shimano 11-speed freehub, 142x12mm thru axle

Front tire

Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x28mm

Rear tire

Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x28mm

Cockpit

Stem

Bontrager Elite, 31.8mm, Blendr compatible, 7-degree (Size 47: 70mm; 50: 80mm; 52/54: 90mm; 56/58: 100mm; 60/62: 110mm)

Handlebars

Bontrager Comp alloy, 31.8mm, 80mm reach, 121mm drop (Size 47/50: 38cm control width, 42cm drop width; Size 52: 40cm control width, 44cm drop width; Size 54/56/58: 42cm control width, 46cm drop width; Size 60/62: 44cm control width, 48cm drop width)

Saddle

Verse Short Comp, steel rails (Size 47/50/52: 155mm width; Size 54/56/58/60/62: 145mm width)

Seatpost

Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset (Size 47: 250mm length; Sizes 50-62: 330mm length)

Builds

The Emonda ALR is offered in a single complete build, the ALR 5, which prioritizes a reliable mechanical drivetrain to keep the overall price accessible. It is equipped with Shimano's 12-speed 105 R7100 groupset, featuring a 50/34T compact crankset paired with an 11-34T cassette. This wide gear range provides ample low-end gearing for steep climbs while maintaining tight enough jumps for paceline riding.

The frame utilizes a threaded T47 bottom bracket, a standard that mechanics favor for its creak-free operation and straightforward serviceability. However, the headset-routed cables introduce a maintenance tradeoff. While the hidden routing creates a clean aesthetic, replacing shift cables or servicing the upper headset bearing requires significantly more labor than a traditional external setup.

Rolling stock consists of Bontrager Paradigm SL aluminum wheels. These rims feature a modern 21mm internal width and are tubeless-ready, though the bike ships with basic 28mm wire-bead tires and inner tubes. Because the frame utilizes standard round seatpost and cockpit dimensions, the ALR 5 serves as an excellent foundation for privateer racers looking to upgrade wheels and touchpoints over time.

$2,500

Selected

Reviews

Critics consistently praise the Emonda ALR for delivering a ride quality that rivals mid-tier carbon frames. Rather than exhibiting the harshness historically associated with aluminum, the frame manages high-frequency road chatter effectively. One tester noted the tubing provides an "almost steel-like" (Road.cc) smoothness, particularly at the rear of the bike. Out of the saddle, the chassis feels highly efficient, with reviewers noting it has the "right snap to be a truly wonderful climber" (Bicycling).

While the frame itself earns high marks for its lively acceleration, reviewers universally point to the stock wire-bead tires as a major limitation. Multiple testers described the factory rubber as feeling "sluggish" (BikeRadar), muting the bike's true potential. Upgrading to a premium tubeless tire is widely recommended as the first necessary change.

Handling is characterized as stable and predictable rather than hyper-reactive. Compared to its sharpest criterium rivals, the steering is slightly more relaxed, allowing riders to hold a line through fast corners without constant micro-corrections. Testers appreciated this balance, reporting that the bike's responsiveness "mirrors its carbon siblings" (Cycling Magazine) while remaining composed on high-speed descents.