Disc brakes vs rim brakes - which is better?
Direct answer · Cyclesite
Disc brakes have become the standard on new bikes because they stop consistently in the wet, give better control on descents, and do not wear out your rims. Rim brakes are lighter, simpler and cheaper to maintain, and they are perfectly capable for fair-weather riders. For most UK riders, who deal with rain and hills, disc brakes are worth it. But used rim-brake bikes are now excellent value, because the market has shifted to disc and prices have dropped.
Last reviewed: 2026-07-17
What actually differs
A disc brake clamps a rotor at the centre of the wheel; a rim brake clamps the outer edge of the rim itself. Disc brakes (especially hydraulic ones) give consistent, powerful stopping in all weather, fine control, and no wear to the rim, at the cost of more weight, a higher price, and the occasional bleed. Rim brakes are light, simple and cheap, and you can maintain them yourself with basic tools, but they lose power in the wet and slowly wear the rim away.
Why disc has taken over
In the UK we ride in the rain, descend wet hills, and deal with year-round road grime, and disc brakes handle all of that without fading. That is why almost all new road, gravel and mountain bikes are now disc-only, with hydraulic discs standard from the mid-range up. If you ride year-round or value confident stopping on descents, discs are the sensible default.
When rim brakes still make sense
Rim brakes are still a fine choice for fair-weather riders, anyone who likes to do their own maintenance, and anyone on a budget. The big upside today is value: because the market has moved to disc, used rim-brake bikes sell for noticeably less than equivalent disc bikes, so you get more bike for your money. If you race, check your event rules, as most now allow discs but a few club events still have restrictions.
Checking the brakes on a used bike
On a disc-brake bike, check the rotor and pad thickness for wear, and squeeze the lever, as a spongy hydraulic lever usually just needs a bleed but is worth knowing about. On a rim-brake bike, look closely at the braking surface of the rim: a worn, concave track (often with a wear indicator groove that has disappeared) means the wheel is near the end of its life and will need replacing. Every listing on Cyclesite is checked against UK stolen-bike databases before it goes live.
| Feature | Disc brakes | Rim brakes |
|---|---|---|
| Wet-weather stopping | Consistent | Fades when wet |
| Weight | Heavier | Lighter |
| Home maintenance | Occasional bleed needed | Simple, DIY-friendly |
| Rim wear | None | Wears the rim over time |
| Used value | Pricier | Excellent value now |
| On new bikes | The standard | Increasingly rare |
Average used bike prices by category (UK)
| Category | Average price | Sample size |
|---|---|---|
| road | £1,477 | 13 |
| ebike | , | 6 |
| mtb | , | 3 |
| gravel | , | 2 |
| bmx | , | 1 |
Last updated: 2026-07-17
Related Questions
Are disc brakes worth it in the UK?
For most riders, yes. Our wet climate and hilly descents are exactly where disc brakes shine, stopping consistently when rim brakes would fade. The weight penalty is small and matters only to weight-focused racers.
Do rim brakes wear out the wheel?
Yes. Rim brakes wear the braking surface of the rim over time. When that surface becomes visibly concave, or a wear-indicator groove disappears, the rim is near the end of its life and the wheel needs replacing.
Can I convert a rim-brake bike to disc brakes?
Generally no, not without the right frame and fork mounts and disc-compatible wheels, which most rim-brake bikes do not have. It is rarely worth it. If you want discs, buy a disc bike rather than trying to convert.
Are used rim-brake bikes a good buy?
They can be excellent value. As the market has shifted to disc, used rim-brake bikes sell for less than equivalent disc bikes, so a fair-weather rider or anyone on a budget gets more bike for the money.
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