Disc brakes

Ridley Technology
Disc brakes are one of the newest game-changing evolutions in road cycling. They add that extra level of security to any ride, knowing that you can always stop on demand. They are equally reliable in all weather conditions. The ease of braking is a real bonus, especially when your hands are frozen and barely functional. Just a light pull on the lever to modulate your speed. With no need for braking on the rim surface, wear and tear is reduced. This gets you much more mileage from your wheelset.
"The ease of braking is the same difference as the ease of changing gears when electronic shifting came out"
– Adam Hansen, Lotto Soudal Pro Cycling Team