Disc Brakes or Rim Brakes

Should I Get Disc Brakes or Rim Brakes? - What System Will Weigh More

From Kevin Tisue,
Your Guide to Mountain Biking.

This is a common question but the answer is not always what you want to hear.

A. There are two quick and dirty answers to the disc brake or rim brake question:

One, If you want better, more consistent brake performance in all conditions and don't really care if it weighs a little more or costs a little more, choose disc brakes over rim brakes.

Two, if you want the lightest set-up you can have, and are willing to accept small variances in brake performance, or if a low price is really important, choose rim brakes over disc brakes.

In a little more detail. Mountain bike rim brakes have gone through several design changes over the years. They started with the original cantilever brakes, went through the dark U-Brake years, and are now known as V-Brakes. V-Brakes work well in most conditions.

Rim brakes have some drawbacks. They require straight un-damaged rims to perform their best.

Rim brakes perform poorly in wet or muddy conditions. Over time, Rim brakes can wear right through the side of your rim literally causing the side of the rim to blow off (I've seen this happen and its not pretty.).

Disc brakes have been around for a long time in cars but weren't seriously used on bikes until the mid to late 90's. There were definitely some issues with some of the earlier models but the disc brakes of today, cable actuated or hydraulic, perform quite well.

The performance of disc brakes is considerably better than rim brakes. Especially in wet or muddy conditions. Disc brakes usually require less force to apply and aren't effected by rim/wheel condition.

The biggest downside to disc brakes is the added weight. By the time you