2015 Trek Émonda S 4
Every detail of the Émonda line, from frame design to each component choice on every model, serves the same audacious goal: to create the lightest line of production road bikes ever offered. Full spec list.
300 Series OCLV. OCLV Carbon: the industry leader. Over two decades ago, Trek engineers developed our Optimum Compaction, Low Void carbon manufacturing process, enabling us to produce carbon bikes with consistency and quality previously thought impossible. To this day, Trek OCLV Carbon continues to lead the industry, advancing what's possible in carbon frames.
Ride-tuned performance. Custom ride-tuned OCLV Carbon frame provides the perfect balance of stiffness and weight. Each tube shape is optimized to maximize the ride performance.
H2 fit. H2 features a slightly higher head tube to put less strain on your back and neck. It's the right way to get most riders, including many of our Pro Team riders, in the right place. With no need for high-rise stems or spacer stacks, the look is nothing but pro.
E2 head tube and fork. Our E2 head tube tapers from a 1.5" lower bearing to a 1-1/8" upper bearing, and is wider side to side than front to back. This asymmetric steering system minimizes weight while maximizing power transfer and keeping the fork stiffer under cornering loads. Result: a more powerful and confident ride.
BB86.5. Wide, stiff press-fit bottom bracket improves pedaling performance for exhilarating acceleration.
DuoTrap compatible. The end of zip ties. DuoTrap seamlessly integrates the computer sensor into the frame to measure speed, distance, and cadence with no added aerodynamic drag. It works with all the major ANT+ wireless technology players, including Bontrager, Garmin, PowerTap, and SRM.
3S integrated chain keeper. Our 3S chain keeper is integrated directly into the bike frame. It's an elegant solution that provides flawless shifting even on rough roads and under heavy loads. No more standing on the side of the road, covered in grease, unwedging your dropped chain as competitors race by.