Disc brakes vs rim brakes in 2026: Understanding the differences

Disc brakes have largely taken over from rim brakes as the system of choice for performance road bikes, such as the Boardman SLR range, to the extent that it’s hard to find even an entry-level bike with rim brakes in 2026. Here’s why disc brakes have taken over.

TL:DR Disc brakes, in particular hydraulic systems, are more powerful and easier to modulate than rim brakes and braking performance is less affected by weather conditions and constant use on long descents. They weigh more, but that’s to some extent mitigated by the ability to make wheels lighter as they don’t need to have a brake track.

Disc brakes are easier to keep working optimally too and usually require less maintenance than rim brakes. Rim brakes are still an option on more affordable road bikes though.

Braking performance

In general, disc brakes will provide more powerful braking than rim brakes, particularly if they’re hydraulically actuated. They’re also more easy to modulate than rim brakes, less prone to fade and less influenced by the weather.

Weight

The combination of the disc brake rotor and calliper will weigh more than a rim brake calliper. The rotor is usually made, at least in part, of steel for its ability to dissipate heat and its resistance to deformation when it heats up. The calliper too needs to have some mass, so that it acts as a heat sink.

In contrast, a rim brake calliper can be made lightweight, although it still needs to be strong enough not to deform under braking. Although there’s no rotor, the need to build the braking surface into the wheel constrains how light the wheel rim can be, as well as the shape of the wheel, in particular its width as well as the width of the tyre that can be fitted.

The opportunity to build a lighter disc brake wheel goes some way to mitigate the extra weight of the braking system.

Maintenance

A rim brake needs continual fettling to keep it working well. Cables stretch and pads can wear down fast, particularly when riding in damp conditions. Pads need to be adjusted to make sure that they’re positioned correctly on the rim when braking.

In contrast, disc brakes are fairly low maintenance. Pads may need to be replaced when they wear and hydraulic systems need to be bled, usually annually. Cable-actuated disc brakes are prone to cable stretch, as with rim brakes.

You can expect a disc rotor to last for years, although they can be bent out of shape if the bike’s weight is leant on them. In contrast, the braking surface of a wheel rim is subject to wear and a rim brake wheel may need to be replaced if the rim edge becomes too thin.

Wheel compatibility

Rim brakes require a rim with a brake track built into it. In contrast, a disc brake wheel is relieved of this constraint, but needs to be built on a specific hub to which a brake rotor can be attached.

So when choosing wheels, it’s important to select a model that is compatible with your brakes. Very few wheelsets can be used with either rim or disc brakes.

Riding conditions

Disc brakes are much less affected by wet weather than rim brakes, which are slower to take effect and also less effective in absolute terms when it’s wet. In contrast, disc brakes will continue to work effectively in the rain, making them a much better choice for riders who are cycling through the winter.

Disc brakes are also a better choice if you are riding long descents. They’re less prone to overheating and fade than rim brakes. This is particularly true of the combination of rim brakes and carbon wheel rims, when dragging the brakes could cause the rim to fail due to the heat, although most modern rims are made with resin that is temperature resistant.

FAQs

Should I choose disc brakes or rim brakes for road cycling?

Most higher specification road bikes are now fitted with disc brakes and it’s relatively hard to find a rim brake bike. You’ll only have a choice of rim or disc brakes on lower spec bikes and lower priced rim brakes tend to be less effective than lower priced disc brakes.

Why have disc brakes become the standard on modern road bikes?

Disc brakes have taken over for their more powerful braking, better modulation, easier maintenance and more consistent performance in different weather conditions. They also allow the use of wider tyres, which increases ride comfort and reduces rolling resistance.

Are rim brakes still a good choice for road cyclists in 2026?

Rim brakes are still an option on more affordable bikes, but if you’re looking for a higher performance bike, such as the Boardman SLR Carbon range, they will be hard to find. There’s a braking performance penalty too.