Is disc brake noise normal or should I get it serviced?

Not all disc brake noise means something's wrong - some squeaking is totally normal, especially when they're new or damp. That said, if it's a grinding sound or the noise just started suddenly, yeah, get them checked out because that usually means the pads are worn down or something's loose.

The quickest way to tell if you need servicing is to listen for the *type* of noise and when it happens. Squeaking when you first brake after the bike's been sitting is usually just moisture on the rotor, and it goes away after a few stops. But if you're getting a high-pitched squeal during normal riding, or worse - a grinding or metal-on-metal sound - that's your cue to get it looked at.

Pay attention to whether the noise changes with pressure too. If it only happens when you squeeze the brake hard, it might just be pad vibration, which is annoying but harmless. However, if it's constant or gets worse over a few days, something's probably worn down - either the pads are nearly gone, the rotor's got debris stuck to it, or there's alignment issues between the pad and rotor.

One other thing worth checking: do your brakes feel spongy or do they require more force than usual to stop? If the noise comes with any change in braking power or responsiveness, don't wait - get it serviced. Otherwise, a single squeaky ride isn't an emergency, but if it keeps up or escalates, book a service.

Disc brake noise isn't automatically a red flag - it depends on what you're hearing and when. If it's a high-pitched squeak that comes and goes, especially when brakes are wet or the pads are brand new, that's usually harmless, but if you're getting a grinding or metal-on-metal sound, or if the noise is constant, that's your cue to get them looked at before something wears through.