Spurcycle Bell vs Knog Oi Brass
The two bells designers fight over: Spurcycle's USA-made stainless-and-brass loud bell versus Knog's low-profile Oi Brass that hugs the handlebar. Sound, mount style, and looks decide it.
- Materials: stainless steel + brass
- Sound output: 84 dB
- Weight: 72 g
- Mount: fixed striker with strap
- Bar fit: 22.2-31.8 mm (universal band clamp)
- Made in USA
Sizing: Universal band clamp fits drop-bar and flat-bar (22.2-31.8 mm). Strap mount lets you place it next to brake hoods.
MSRP: $60-85 · Amazon ~$68.98
- Materials: brass dinger, stainless ringer
- Sound output: 81 dB
- Weight: 64 g
- Mount: thumb-press, low-profile ring
- Bar fit: 22.2-31.8 mm (universal)
- Compact spherical design
Sizing: Universal mount fits 22.2-31.8 mm. The ring sits flush around the bar instead of bolting on top.
MSRP: $40-55 · Amazon ~$39.00
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Side-by-side spec sheet
| Aspect | Spurcycle Bell | Knog Oi Bell Brass | Winner |
|---|---|---|---|
| Sound output | 84 dB | 81 dB | Spurcycle Bell |
| Weight | 72 g | 64 g | Bell Brass |
| Mount style | Strap with fixed striker | Low-profile thumb-press ring | Tie |
| Bar fit | 22.2-31.8 mm | 22.2-31.8 mm | Tie |
| Cockpit footprint | Standard top-mount | Flush around the bar | Bell Brass |
| Build origin | USA-made | Designed in Australia | Spurcycle Bell |
| Amazon price | $68.98 | $39.00 | Bell Brass |
The verdict
Pick the Spurcycle Bell if you ride busy city streets and want a 3-dB-louder ring (3x the perceived volume) that other riders and drivers actually hear - it's the loudest premium bell on the market and lasts forever. Pick the Knog Oi Brass if you want a bell that disappears on the handlebar - the flush ring design has zero visual footprint and saves you $30.
Best value
Knog Oi Brass - 76% of the loudness for 57% of the price, and it doesn't clutter the cockpit.
Best performance
Spurcycle Bell - 3 dB louder, USA-made build quality, and the strike sustains 3x longer than any competitor.
Not sure which bells & horns fits you?
Our sizing guides and category pages help you narrow the field.