Everything you need to know about disc brakes on road bikes
Road bikes today are more capable than ever, and that’s thanks to some adventurous road riders who wanted to explore terrain that wasn’t perfectly smooth. They increased their expectations of what a road bike should be able to handle, and some major advancements in technology followed that help all road riders, whether they’re riding on smooth road or more rugged roads.
The most significant new technology for road bikes is disc brakes. They’ve been used on mountain bikes for years, but until recently disc brakes were considered too heavy for road bikes. Today, though, road disc brakes are lighter and more compact – and they’re increasingly prevalent on road bikes.
Unlike a traditional rim or caliper brake, which slows the wheel by applying pressure from a soft rubber pad directly to the rim, disc brakes employ rotors attached to the wheel hubs, which are slowed by calipers attached directly to the frame. Disc brakes are used on cars, motorcycles and nearly all off-road bicycles, which reinforces their versatility and superior stopping power.