In 2014, Trek introduced the 690-gram Emonda SLR to the world as the lightest production road frame at the time. Then, for 2018, Trek upped the ante by dropping weight even further while adding a full suite of disc brake options. The Emonda SLR Disc frameset tips the scales at a mere 665 grams and it turns out that it’s not only a lightweight climber, but a great all-day bike with responsive handling and instant acceleration.

2019 Trek Emonda SLR Disc H2 Features:

  • 700 Series OCLV Carbon layup
  • H2 fit puts the majority of riders in the perfect position
  • Stated 28mm tire clearance (tested to 30mm actual widths)
  • Flat mount disc brakes
  • Internally-routed cables in frame, external at fork
  • Full, lifetime warranty
  • Weight: 15.5 – 16 lbs. (depended on spec)
  • Frame weight: 665 grams (stated, vapor coat)
  • MSRP: $3299 (SLR frame) or $5799 – $11,999 SLR complete bikes
Trek Emonda SLR Disc Review

Trek Emonda SLR Disc with Zipp 303’s.

The setup

Sometimes, our test builds are off-the-shelf affairs, but not this time. I started with the 2019 Emonda SLR Disc H2 frameset as the foundation with SRAM’s 11-speed Red eTap HRD, but swapped out just about everything else during the 10-month testing period. Emonda SLR Disc was outfitted with four different wheelsets (Zipp 454 NSW Disc, Zipp 303 Firecrest Disc, Bontrager Aeolus XXX 4 and Bontrager Aeolus Pro 3), a few saddles (Fabric Scoop Shallow, Ergon SR Comp Men and Bontrager Aeolus Elite) and a couple of different bars (ENVE Compact Road Bar and Schmolke Evo TLR). So, yeah, you could say it was put through the test mule process.

Should you choose to get a 700 Series OCLV SLR model, going with SRAM Red eTap AXS will set you back a mint, but the sweet spot would be the 600-series 2020 Emonda SL eTap build at $5299. You get 12-speed Force eTap AXS, a great set of carbon clinchers and a few hundred extra grams (plus a wad of cash in your pocket).

Another alternative would be to go with a standard or Project One frameset, if you want something truly unique or want the more aggressive H1 fit. Complete bikes are always going to be your best value, but it’s ultimately your choice depending on your preferred setup.

Trek Emonda SLR Disc - Climbing to Granite Flats

The Emonda in its natural element — climbing in the mountains.

Oh yes, the Emonda climbs

Grand Tour bikes, like the Emonda, are always a blast to ride. Their snappiness out of the saddle puts them in rarified company as the vert ticks off and the mountains get steeper. While disc brakes do still have a weight penalty over rim brakes, the 665 gram Trek Emonda SLR Disc frame pretty much obliterates that argument. You’ll never know the wiser as you accelerate up any climb around.

My first ride was a classic mountain ascent from my home to Tibble Fork Reservoir. It’s not a demanding climb, but it’s a steady one that, at the right cadence, allows you to push yourself to the limit. Though I was working out some minor fit issues, I still remember how impressive the bike felt. It climbed with ease, and, it rode smoother than expected when outfitted with 28-30mm fast-rolling tires. With true 25mm tires, like the new Bontrager R3’s, the ride is firm, but not harsh. Trek’s max stated tire width is 28mm with an actual frame clearance of just over 38mm. In my experience, 30mm actual tires cleared sufficiently for me.

The Emonda never let me down on any climb. I was actually able to take a few longstanding PR’s, like the following “Narrows to Redwood” segment that had stood for 15 additional attempts since 2014. Was this entirely the Emonda SLR’s doing? Well, likely not, but it certainly had a part in it and never held me back on any other climbs, long or short.

Narrows to Redwood Strava KOM

Not a very popular climb, but hey, I beat my previous PR from 2014.

You can sit and pound out the vert or stand and push yourself to the limit. Either method is rewarded with zippy power and cable routing is such that it doesn’t interfere with your pedal strokes. Power transfer is as good as it gets.

All climbs turn downhill at some point, so how does the Emonda handle Utah’s mountainous descents? It is certainly calm and collected with the extra stopping power of discs. I prefer 44cm bars for fit, comfort and control. That extra width provides additional leverage while cornering — something I always appreciate. With the ENVE Compact Road Bars, I felt as if the handling was a little sluggish, but a switch to the Schmolke Evo TLR’s turned the Emonda into a very different machine. The ride became noticeably more responsive and the bike’s handling came into its own. Even at the highest speeds, I felt calm and collected. When needed, the slightest movements translated into precise cornering without feeling one bit twitchy. This bike rails on descents.

Trek Emonda SLR Disc H2 Review

With discs, it’s no bother taking those carbon clinchers out during the winter.

That said, I’ll admit that it still doesn’t quite have the Italian, swan-like handling of the Pinarello Dogma F10, but it’s not too far off. As an all-day ride, the Emonda SLR Disc is a hard one to beat and great builds will set you back half as much as a Pinarello. Indeed, climbing and descending are where the Emonda shines. When it comes to flat or rolling terrain, it holds its own — particularly if you can catch a wheel or slap some deep-section wheels on it (case in point here). But. a Madone would be a much better choice for crushing your friends in the flats, or even something like the BMC Roadmachine 01. The Emonda’s killer instinct shines in the mountains.

Trek Emonda SLR Disc Review

Climbing is always on the menu with the Trek Emonda SLR Disc.

Make it your Emonda

As mentioned, I’ve changed the Emonda’s wheels, bars, tires and saddles quite a bit throughout the test and every change has been noticeable, but natural. So, what can I take away from that? I’d say that this bike is adaptable and capable to suit your performance or fit needs. Take some time to make it your own and you’ll continue to be impressed by how it responds.

In a world of total integration, it may seem surprising that the front brake cable is externally-routed. But, there’s genius in that decision as both Trek’s race teams and home mechanics alike will rejoice in the easy access. I did wish for some cleaner frame plugs for use with SRAM’s wireless eTap drivetrains, but out of sight, out of mind, I guess. The integrated seatpost mast with topcap is all part of the bike’s performance story, but adjusting the saddle angle is a tedious affair. Getting it just right requires an exercise in patience. Additionally, the large diameter of the top cap made the velcro straps of the EVOC Saddle Bag touch my inner thigh.

The Good

  • This Grand Tour racer has a journeyman H2 fit
  • Beautiful aesthetics with clean lines
  • Obliterates the disc brake weight penalty
  • Externally-routed front brake cable (easy maintenance)
  • A fun bike to rail
  • Maintains stability on fast descents
  • An excellent climber with excellent power transfer

The Bad

  • Saddle angle is difficult to adjust
  • Seat mast diameter causes some saddle bags to touch my inner thigh
  • Toss those aluminum bottle cage bolts (they strip just looking at them)
  • Would love eTap-specific port covers
  • Watch that toe overlap

The Bottom Line: 2019 Trek Emonda SLR Disc

The race to the bottom isn’t always a good thing. But, with the latest Emonda SLR Disc, the 665 gram frame is everything I expected. It’s light, responsive and still comfortable, thanks to the added tire clearance afforded by disc brakes. I also love that Trek employs their H2 fit that will allow most riders to achieve a great fit without gobs of spacers.

Buy Now: Visit or Your Local Dealer

In Summary

9.3 A Climber Indeed

Pure, lightweight climbing bikes are still a bit of a rarity these days. Getting one that features the confidence of disc brakes is even more rare. The Trek Emonda SLR Disc is wicked-light and features instant power transfer on short, punchy climbs and long, drawn-out affairs. It's a confident descender that handles with grace. Just a couple of niggles, but this is a great all-day bike for those who listen for the call of the mountains to come and ride.

  • Ride Quality 8
  • Handling 9
  • Climbing 10
  • Descending 9
  • Pedaling Efficiency 10
  • Value 10

About Author

A native of the Pacific Northwest, Jason quickly developed a love for the outdoors and a thing for mountains. That infatuation continues as he founded this site in 1999 -- sharing his love of road biking, mountain biking, trail running and skiing. That passion is channeled into every article or gear review he writes. Utah's Wasatch Mountains are his playground.


  1. I would like to comment that maybe the tyre clearance is declared from Trek that it is for 28mm tyres but this is not true in the real world.
    I had an issue with the front tyre 28mm that by the time it got larger (continental)
    when the tyre is new it has 4mm gap from the fork
    when the tyre has some km on it the gap from the fork is 1mm… so maybe trek didn’t make the calculations right.

  2. This is on the latest model Emonda Disc? I didn’t have any clearance issues with 28c tires on the Emonda with either the Zipp 454 NSW or Bontrager Aeolus Pro 3 wheels. The Pro 3’s are 19.5mm inner width.

    I’m sure you’re aware that Continental tires are notoriously wider than their stated widths. What are they measuring out to on your rims now?

    • Hi Jason, thanks for your review of the Emonda SLR disc. I’ve just bought an SLR 8 disc with Dura Ace mechanical and it’s for sure very lively on the hills. I find it a bit harsh on rough roads with 25mm tyres with tubes but I’m coming from a Cannondale Synapse which is very forgiving on similar roads. I’ll try running the Emonda with 28 tubeless tyres to see if it leaves it a bit more comfortable. I’ve a question on what you thought of the Bontrager Aeolus XXX 4 wheels you tried out on this Emonda and if you found it much of an upgrade compared to the Bontrager Aeolus Pro 3 that came originally on the bike? I’m thinking of getting the XXX 4 wheels but I’m a bit torn between these and a set of Zipp 303 NSW (which are more expensive) and Roval CLX 50 (or even the cheaper Roval SL 50). I’m 70kg, I don’t race so most of my riding is a mix of 100km-150km spins on rolling flats and hills on not so good tarmac with some long days in the hills training for Alps/Pyrenees trip once per year. Was wondering if you have any advice on these wheel options ? Thanks

      • Kieran… thanks for your comment and questions. Yes, as you found out, the Emonda SLR is certainly a firm ride — especially compared to a smooth Synapse. I would definitely recommend some 28c tubeless tires or even bigger, if you can fit them.

        And, the Aeolus Pro 3’s are really awesome wheels and are hard to beat. They roll smooth and can be run tubeless. But, if you are looking for an upgrade, the XXX 4’s are definitely nice. You’ll get a little more aero benefit while still remaining lightweight. The CL 50’s are also a great option for the money.

        Truthfully, you’ll be splitting hairs with the commendable Pro 3’s. They really are great wheels. But, a deeper-section wheel would certainly improve aero performance. The 303 NSW’s are flat-out awesome, but really expensive. If you want the best wheel period, that’s your choice. But, you really have to ask yourself if the extra $1000-$1500 is worth it. They are sweet wheels though. Good luck in your choices and enjoy that Emonda! Once you get a little wider tires on there, you’ll discover that it can be comfortable and remain a rocket of a climber.

  3. Alex Ioannidis on

    Jason this is a 2019 disc brake slr model.
    I measure 3,5mm gap from the top of the tire to the fork.

    • Hmmm… as you know, tires vary between manufacturers and even between production runs, but I didn’t have any issues running even 30mm width tires on my Emonda SLR Disc. That was a measured width, but the actual tires were Zipp RT28’s on Zipp 303’s.

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