Trek Emonda SLR Disc Project One review

Trek’s lightweight race machine gets even lighter

Our rating 
4.0 out of 5 star rating 4.0
GBP £8,950.00 RRP

Our review

The benefits of disc brakes and light weight in one expensive, but compelling, package
Buy if, You want a thoroughbred superbike but don’t want to shout about it
Pros: At its best on big climbs, and brilliant at coming back down again
Cons: Very understated for a superbike
Skip to view product specifications

Trek’s Émonda was conceived to be the brand’s lightweight race bike. It’s the model that was favoured by Alberto Contador, who rode the rim-braked version at this year’s Vuelta a España.

  • The Trek Émonda is one of our key bikes for 2018. We’ve collated eleven bikes that we believe you should know about in the coming year. Some are super bikes, while others might display great value for money, but they all have one thing in common — they’re all important bikes that show how incredibly varied road and mountain biking is today.

The Project One on the roads of Peille

It’s no surprise that a bike with a frame that weighs 644g was Contador’s preferred ride for his farewell grand tour, as the race followed a route littered with tough climbs. But the model on test here is the disc-brake version and we all know disc-brake bikes are heavy, right?

Wrong, the Émonda Disc SLR frame shatters that misconception, weighing in at 665g. Add in the thru-axle-equipped, flat-mount disc fork at 350g and you’ve got a chassis that’s just 1,015g. And there aren’t many rim-braked bikes that can match that.

Fittingly, we tested the Emonda on the Madone climb in France — Emonda is an anagram of Madone!
Ben Healy / Immediate Media

The curves and sculpted surfaces of the previous Émonda have been retained, but the fully built-up SLR Disc’s weight of 6.65kg certainly shows that a lot has been going on under the skin, as the complete SLR Disc package is lighter than the previous rim-braked model. Its understated silver-grey paint and predominantly black components add up to a very subtle-looking superbike.

On big ascents and descents, the SLR Disc really shines. Up climbs the low weight of the chassis combined with the light wheelset — Bontrager Aeolus 3 hoops, weighing 668g (f) and 786g (r) — make for a bike that gains altitude fast.

The old Émonda always had handling chops in spades and this new one feels just as planted, which is no surprise as the same geometry has been carried over. Up front, the previous model could feel a little firm and buzzy over rougher surfaces, but the SLR Disc is much improved. A lot of that is down to the switch to 28mm tyres, which are perfectly shaped by the rims’ 19.5mm internal width.

The frame is pretty much the lightest Trek has ever made
Ben Healy / Immediate Media

When it comes to losing altitude, those big tyres give the SLR Disc bags of grip in fast corners and I appreciate Trek’s decision to go with 160mm rotors front and rear to complement the latest Dura-Ace hydraulic brakes. They provide plenty of feel at the lever, making it easy to get just the right amount of brake force.

As the test bike is a Project One machine it came with Trek’s lower and more aggressive H1 fit. Most of Trek’s bikes usually come in H2, which adds a little stack height and reduces the reach by a few millimetres. The position on the bike is lower than I’d usually ride but is one that encourages you to tuck in and push harder to go faster.

If you’re going to drop nearly £10k on a bike, you’ll want Shimano’s Dura Ace Di2 groupset
Ben Healy / Immediate Media

Like the front end, the SLR Disc’s rear also feels firm. It’s certainly stiff, as no amount of mishandling could get the rear disc to do anything but go about its job. That stiffness does mean things can get choppy through the seat when you’re speeding over rutted roads although the Bontrager Montrose saddle is well shaped, and its minimal padding manages to keep you comfortable.

The latest Dura-Ace Di2 impresses and the new hydraulic brakes feel like a big step forward too. I did manage to get the front rotor ticking after some particularly heavy braking at the bottom of a descent in the rain, but after a couple of miles the noise disappeared.

If you’re going to have a bike that’s fast up hill, you might as well make sure the brakes are good — weight weenies, this bike still hits the UCI weight limit
Ben Healy / Immediate Media

Overall, the Émonda SLR Disc is a wonderful example of a disc-braked race machine. Its understated appearance means this bike looks almost anonymous — its paint job hiding what is a truly special machine. If you’re the sort of rider who wants the very best but doesn’t want to shout about it, the Émonda SLR Disc is a fine choice.


BikeRadar would like to thank Brittany Ferries, the Commune of Peille, France, and Kieran Page at La Maison des Activities de Pleine Nature de Peille for their help and support during our Headline Bikes test.

Product Specifications


Name Emonda SLR disc Project 1
Brand Trek

Available Sizes 50cm 52cm 54cm 56cm 58cm 60cm 62cm
Rear Tyre Bontrager R3, 28mm
Wheelbase (cm) 98
Top Tube (cm) 56
Seat Tube (cm) 53.3
Chainstays (cm) 41
Wheelset Bontrager Aeolus 3 TLR
Weight (kg) 6.65
Trail 5.8
Stem Bontrager Pro
Shifters Shimano Dura-Ace Di2
Seatpost Bontrager Ride Tuned seatmast
Seat Angle 73
Saddle Bontrager Montrose Pro
Rear Wheel Weight 1400
Rear Derailleur Shimano Dura-Ace Di2
Bottom Bracket BB90
Headset Type Bontrager
Head Angle 73.5
Handlebar Bontrager XXX VR-C
Front Wheel Weight 1100
Front Tyre Bontrager R3, 28mm
Front Derailleur Shimano Dura-Ace Di2
Frame Material 700 Series OCLV carbon
Fork Offset 4
Fork 700 Series OCLV carbon
Cranks Shimano Dura-Ace Di2 50/34
Chain Shimano Dura-Ace
Cassette Shimano Dura-Ace Di2 11-28
Brakes Shimano Dura-Ace BR-9170 hydraulic disc
Frame size tested 56cm