The new s works tarmac is rider first engineered to provide every size frame with the hill destroying stiffness and legendary descending prowess the tarmac is known for its a no compromise race bred machine ready to be built up exactly how you want it s works fact 11r carbon frame rider first engineered w tapered headtube and osbb full monocoque fact carbon fork with a tapered carbon steerer is both light and stiff s works fact carbon seatpost is super light and stiff for optimal power tra