Disc brake or rim brake?
Disc brakes offer stronger braking power, perform better in wet conditions, and don’t wear down the rim.
Rim brakes are lighter, more affordable, and easier to maintain. Your frame and fork mounts determine which system you can use. Postmount is common on MTBs, while Flatmount is typical on road and gravel bikes. If your frame doesn’t support disc brakes, rim brakes are the only option.