After weeks of speculation, Trek has officially released the Émonda, which it claims is the world’s lightest line or production road bikes. That line includes the 10.25-pound Émonda SLR 10, claimed to be the lightest production road bike. It comes with an equally stunning $15,750 price tag.
Originating from the French verb émonder meaning “to prune or trim away”, the Émonda project was three years in the making. Trek says it started with the most stringent frame tube optimization program it’s ever used. The Émonda project focused solely on assuring that every strand of carbon served a purpose.
“We have the resources to build a complete bike system. Let’s use that advantage to look at every aspect of the bicycle and how each component interacts with all the others,” said Trek road product manager Ben Coates. “Once we covered the basic bike functions, we focused on every minute detail. Every decision was based on what was the overall lightest option for the system.”
That minimalist approach is seen most clearly in the Émonda SLR 10, which is built at Trek headquarters in Waterloo, Wisconsin. But simply being the lightest was not enough, and Trek claims the Émonda’s ride quality surpasses previous bikes its built. To make this happen, Trek says it threw every piece of technology at the process: Finite Element Analysis, strain gauge instrumentation, and a custom-designed cornering computer model.
But there’s only so much you can do in a lab, so for over a year, Trek Factory Racing athletes and other pro riders performed iteration after iteration of ride testing to determine the right carbon layup and ride characteristics for each Émonda frame size.
When parts could not be found to meet development goals, Trek built its own. That resulted in the new Bontrager XXX bar/stem combination found on the Émonda SLR 10. This Trek/ Bontrager design saves a claimed 75 grams over a comparable bar and stem combination.
Bontrager’s brake team also got in the act, developing the new Speed Stop brake with mounts that connect directly to the frame via two bolts to reduce component parts. This, says Trek, saves up to 35 grams per caliper. An adjustable leverage ratio, a two position quick release, and a wide stance add to Speed Stop’s versatility. This Trek/Bontrager collaboration also increases tire clearance so that running larger tire sizes is possible. On the record Coates would say he can only recommend 25s. But the eyeball test says it would be no problem to slide in a pair of 28s and maybe even 30s.
Coates was also quick to point out that the entire Émonda line is backed be a lifetime manufacturer’s warranty, something that Trek hopes will reassure rider’s leery of the “world’s lightest” claims.
Claimed frame weight of the Émonda SLR 10 is 690 grams. The rest of the bike breaks down like this:
- Émonda SLR fork (280g), frame hardware (30.5g)
- Bontrager XXX Integrated bar/stem (216g)
- Bontrager SLR Ride Tuned Carbon seatmast cap and ears (119g)
- Cane Creek AER upper headset assembly (18g)
- FSA Super Light headset lower bearing (17.8g)
- Bontrager Speed Stop brakes (232g)
- Stock SRAM RED 22 drivetrain (1455g)
- Bontrager ceramic BB bearings (62g)
- Tune headset spacer (1.2g), Tune Komm-Vor Plus saddle (83g)
- Tune wheelset (MIG45 front hub, MAG150 rear hub, Skyline carbon tubular rims, Sapim CX Ray Spokes (886g)
- Tune Skyline U20 skewers (27g)
- Tune Gum Gum expander plug and headset top cap (15g)
- Vittoria Crono CS tubulars (360g)
- Bontrager lightweight grip tape with bar end plugs (34g)
- Jagwire Road Elite Link cables and housing (125g)