The 2021 Trek Domane SL 6 Road Bike in Matte Gloss/ Trek Black is all about smooth riding, speed & versatility. The lightweight OCLV Carbon frame has both Front & Rear Iso Speed to smooth out bumps in the road & reduce fatigue so you can stay stronger on long adventures. The Domane SL 6 comes with 11 speed Ultegra gearing as well as upgraded wheels, brakes & handlebars. The Domane SL 6 is built around a 500 Series OCLV Carbon framewith road-smoothing Front & Rear Iso Speed. Iso Speed works a little like suspension. It allows parts of the bike to decouple in a controlled way to absorb bumps, rather than sending a shock up through the frame. The effect is to smooth out bumpy roads & reduce the shock from potholes & cracks so you can carry your speed, keep the power down & not get as tired. On the SL 6 you also get an Iso Zone handlebar to take even more buzz & vibration out. The Domane bikes are race fast but designed to be used on long all-day adventures. The Domane SL 6 comes with powerful flat-mount disc brakes, a full 2x 11 Shimano Ultegra group set so you get near pro levels of performance but at a much more reasonable price. The tubeless-ready Bontrager Paradigm Comp wheels come with 32c tyres fitted but there is clearance of up to 38c. Internal storage & cable routing add to the bikes capability & sleek look. This bike is perfect for Riders who want a fast road bike that can handle long all day endurance rides even on the bumpiest & most potholed back roads. Want to hit up some cobbles? It can handle that as well. With 11 speed Ultegra gearing, hydraulic brakes & tubeless ready wheel this bike is a smooth as it is fast. Key Features This bike is super versatile, super smooth & equally suited to racing, club rides & all-day adventures on the open road Road-smoothing Iso Speed absorbs fatiguing bumps in the road for a faster, smoother, more comfortable ride A sleek internal storage compartment gives you a versatile spot to stow tools & gear The stable Endurance Geometry is comfortable over long distances, but this is still a quick racing bike