A bell is one of the cheapest safety upgrades you can make. It warns walkers, joggers and other riders that you’re coming, and in many places it’s required by law.
Why use a bell
- Friendly warning: a ring is less startling than a shout.
- Shared paths: walkers often wear earbuds and don’t hear a bike approaching.
- Legal: many cities and countries require an audible warning device.
Types of noise makers
Classic ding bells
A spring-loaded striker gives a clear, pleasant ring that carries well on paths. A classic loud bike bell is the standard choice for commuters.
Twist or “ping” bells
Small and neat; a quieter ring that’s great for paths but less effective in traffic.
Novelty bells
Fun shapes make kids actually want to use the bell. The beetle bell and ladybug bell are favorites for kids’ bikes.
Horns
Air horns and loud electronic horns are designed to be heard by drivers in cars. Useful in heavy traffic, but too aggressive for paths.
Alarms
Different job: a motion-sensor bike alarm protects a parked bike rather than warning people.
How to choose
- Where you ride: paths call for a pleasant ring; busy roads may justify a horn.
- Fit: check that it fits your handlebar diameter.
- Reach: mount it where your thumb reaches without moving your hand off the brake.
- Durability: metal bells outlast plastic and ring louder.
Bell etiquette
- Ring early, not right behind someone.
- Ring twice and slow down when passing.
- Call out “on your left” too if needed.
- Thank people who move aside.
A bell is part of riding considerately; our bicycle safety tips cover the rest.
For kids
Let kids pick a fun bell, and teach them to ring before passing and at blind corners. Combined with lights and reflectors, it’s a great first step in road safety. Our post on finding the right bicycle can help with the bike itself.
How loud is loud enough?
A bell needs to cut through background noise, like wind, traffic and headphones, without startling people. A good rule:
- Quiet paths and parks: a clear, pleasant ring heard from 15 to 20 meters.
- City streets: a louder, sharper ring or a dual-strike bell.
- Heavy traffic: a horn designed for drivers, used sparingly.
Bell laws around the world
Rules vary. Many countries and states require a bell or another audible warning device on bikes ridden on public roads, while others require only lights and reflectors. Some cities have rules for shared paths, like ringing before passing. Check local rules, especially if you’re traveling with your bike.
Installing a bell
- Choose a spot near your thumb so you can ring without moving your hand off the brake lever.
- Check your handlebar diameter: most bells fit 22.2 mm bars, while some road and mountain bars are larger near the stem.
- Tighten the clamp enough that it doesn’t rotate, but not so tight that it cracks.
- Test the ring and adjust the angle so the striker isn’t blocked by cables.
Care and maintenance
- Wipe the dome clean of dirt and mud; grit dulls the sound.
- A drop of light oil on the spring keeps it snappy.
- Tighten the clamp occasionally.
- Replace cracked plastic bells; they lose their tone.
Path etiquette in more detail
Shared paths work best when everyone is predictable:
- Ring early, ring once or twice. A late, frantic ring causes people to jump the wrong way.
- Slow down when passing, especially near dogs, kids and people with headphones.
- Pass on the left (or the local side) and give plenty of space.
- Say thanks. A friendly wave or word goes a long way.
- At night, use lights as well as a bell. Some walkers can’t hear well, and lights add a visual warning.
Bells for kids’ bikes
A bell is a great first step in teaching road safety:
- Practice ringing in the driveway or park.
- Teach them to ring before passing and at blind corners.
- Combine it with lights and reflectors.
- Let them choose a fun bell. They’re more likely to use it.
A ladybug bell or beetle bell makes the habit fun.
Bells as gifts
Bells are a cheap, cheerful gift for any cyclist. Choose a classic metal bell for adults or a novelty bell for kids. See our bicycle gifts guide for more ideas.
Choosing a bell for different bikes
- Commuter and hybrid bikes: a classic metal bell with a loud, clear ring.
- Road bikes: a small, light bell that clamps near the stem.
- Mountain bikes: a bell you can leave ringing gently on busy trails (some have an on/off switch), so hikers hear you coming around blind corners.
- Cargo and family bikes: a loud bell or a horn, since you’re often in traffic with passengers.
- Kids’ bikes: novelty bells that make them want to ring them.
Whatever you choose, the best bell is one you’ll actually use every time you approach someone. Mount it where your thumb naturally rests.
A bell costs little and lasts for years, which makes it one of the best value safety upgrades on any bike.
Frequently asked questions
Do I really need a bell?
In many places it’s required, and it’s always a good idea on shared paths. It’s the most polite way to let people know you’re coming.
What’s the loudest kind of bell?
Dual-strike metal bells and air horns are the loudest. Electronic horns are even louder but best saved for traffic.
Can a bell fit on any handlebar?
Most bells fit standard bars. Check the clamp size if you have oversized bars, and look for bells with adjustable straps or shims.
Should I use a bell or call out?
Both. A bell gives early warning, and a quick “on your left” helps people know where to move.
A video from Turbospoke showing the spoke-mounted noise maker in action.
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Top image: “Bicycle bell by Rose Bikes” by Singlespeedfahrer (resized and cropped), CC0, via Wikimedia Commons.