Aluminium road bikes on testThe Trek Emonda ALR 5

Julian Schultz

 · 12.09.2023

Trek Emonda ALR 5
Photo: Matthias Borchers
Carbon racers have long since outstripped racing bikes with aluminium frames - a shame really. TOUR tested eight current models. Here: the Trek Emonda ALR 5.

Trek Emonda ALR 5 - Agile American

Is the new Emonda not selling well enough? A discount campaign from Trek, a few months after the aluminium racer was presented, at least leaves room for speculation. The US manufacturer gave a 200 euro discount in July, but at 2299 euros, the ALR 5 is still the most expensive bike in the test field. On the other hand, Trek is the only manufacturer in the comparison to show the technical potential that aluminium frames still have.

Only two disc models are lighter

At 1278 grams, the beautifully crafted frame is not only unrivalled in weight, but is also one of the lightest aluminium models for disc brakes in TOUR's long test history. Only the Cannondale CAAD 12 and the old Emonda ALR 6 weighed a few grams less. As the in-house wheelset can also technically keep up with carbon versions, the Trek is the only disc racer to remain under 9 kilograms.

Stylishly finished and lightweight: the frame set weighs just 1774 gramsPhoto: Matthias BorchersStylishly finished and lightweight: the frame set weighs just 1774 grams

In practice, this means that the US bike accelerates much more agilely than its competitors, which weigh up to 900 grams more. The comparatively stretched seating position, aerodynamically optimised tube shapes and the partially integrated cockpit round off the sporty orientation. The consequence of this is that although Trek provided us with a test bike that already makes full use of the maximum tyre clearance with 28-millimetre tyres, bumps from the road surface still reach the saddle and handlebars relatively unfiltered.

The test bike is equipped with a Shimano 105Photo: Matthias BorchersThe test bike is equipped with a Shimano 105

In addition to the version with Shimano's mechanical 105 groupset, the US company also offers a version with the electronic 105 Di2. Despite the higher price (3399 euros), this bike seems to be more popular with customers: It is sold out in medium frame sizes on the Trek website.

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Trek Emonda ALR 5 - Details and rating

  • Price2499 Euro
  • Weight: 8,8 Kilo
Trek Emonda ALR 5Photo: Matthias BorchersTrek Emonda ALR 5
  • Frame/fork/steering bearing weight* 1278/424/72 grammes
  • Frame sizes** 47, 50, 52, 54, 56, 58, 60, 62
  • Seat/top tube/head tube 525/560/151 millimetres
  • Stack/Reach/STR*** 579/384 millimetres/1.51
  • Wheelbase/caster 985/65 millimetres

Equipment

  • Drive/Circuit Shimano 105 (2x11; 50/34, 11-30 t.)
  • Brakes Shimano 105 (160/160 mm)
  • Wheels/tyres (weights)**** Bontrager Paradigm Comp/Bontrager R2 28 millimetres (f./h.: 1385/1864 grams)
Strengths and weaknesses of the Trek Emonda in the TOUR graphicStrengths and weaknesses of the Trek Emonda in the TOUR graphic

Strengths: Very light frame set, high-quality wheelset

Weaknesses: Relatively little spring comfort

>> The Trek Emonda gets an overall TOUR score of 2.5


* Weighed weights.

** Manufacturer's specification, Test size bold.

*** Stack/Reach Projected vertical/horizontal dimension from the centre of the bottom bracket to the top of the head tube;

STR (Stack to Reach): 1.36 means a very stretched, 1.60 a very upright sitting position.

**** Impeller weights including tyres, cassette, quick release/threaded axles and brake discs if necessary.


Julian Schultz is a qualified sports scientist and trained sports journalist and is responsible for testing complete bikes. From competition bikes to gravel bikes, he tests the latest models and keeps his eyes open for the latest trends. This includes the Tour de France, where the test editor has been on the lookout for technical details and stories from the paddock since 2022.

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