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Knog
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Knog · Bells and horns · AC-353
Knog Oi Classic Bell for Handlebars and Tillers
The Oi Classic is a bell shaped as a thin band that wraps around the bar instead of sitting on top as a dome. Knog designed it for bicycles, and it will mount on any round bar of the right size. The small version fits 22.2 millimetre bars and weighs 17 grams. The large fits 23.8 to 31.8 millimetres and weighs 26 grams.
- Small size
- Fits 22.2 mm bars
- Large size
- Fits 23.8 to 31.8 mm bars
- Small dimensions
- 53 x 37 x 16 mm, 17 g
- Large dimensions
- 68 x 49 x 16 mm, 26 g
Knog Oi Classic Bell key features
- Wrap-around band shape, 16 mm high
- Small fits 22.2 mm bars, large fits 23.8 to 31.8 mm
- Spring-loaded hammer
- Sound level stated as 80+ dB
- Black, silver, copper or brass
- Two year warranty
Who the Knog Oi Classic Bell suits
For handcyclists, scooter riders and users of front-drive attachments who share paths with pedestrians and want a compact audible signal. It needs a round bar of 22.2 millimetres or 23.8 to 31.8 millimetres. Knog does not list wheelchair fitments, so measure the tube.
Figures for comparing
- Weight
- 0.017 kg (0.0 lb)
The same units on every product, converted from the specifications below. Where a source gives two limits, the lower one is shown.
Knog Oi Classic Bell specifications
| Small size | Fits 22.2 mm bars |
|---|---|
| Large size | Fits 23.8 to 31.8 mm bars |
| Small dimensions | 53 x 37 x 16 mm, 17 g |
| Large dimensions | 68 x 49 x 16 mm, 26 g |
| Hammer | Spring-loaded plastic |
| Sound level | 80+ dB |
| Colours | Black, silver, copper, brass |
| Warranty | 2 years |
| Maker country | Australia |
| Brand | Knog |
| Category | Everyday accessories, Bells and horns |
| Catalog ID | AC-353 |
Compared with the source page on 5 October 2026. Details can change, so we confirm them in your quote. Open the source page.
Knog Oi Classic Bell: common questions
Is it made for wheelchairs?
No. Knog sells it as a bicycle bell. It fits round bars of the listed diameters.
Which size should I order?
Small for 22.2 mm bars and large for bars from 23.8 to 31.8 mm.
What comes with the large bell?
Knog includes a hex key and spacer shims with the large size.
How to get a quote for the Knog Oi Classic Bell
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