The 2021 Trek Domane SL 5 Road Bike in Crystal White 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. It has a super reliable Shimano 105 drive train, disc brakes for all-weather stopping power & an easy-access internal storage compartment for stowing ride essentials. The Domane SL 5 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. He 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. The Domane bikes are race fast but designed to be used on long all-day adventures. The Domane SL 5 comes with powerful flat-mount disc brakes, a full 2x 11 Shimano 105 group set & tubeless-ready wheels with wider 700x 32 tyres. 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 the sure reliable 105 running gear this bike will keep going for as long as you can. 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