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Oi Classic

Oi Classic Large

AUD $29.99

This product in currently out of stock


Bike bells generally look & sound a bit ugly. But why? What if they looked sexy & sounded like an angel playing a glockenspiel? A bell with a beautiful tone, but also a remarkable style and choice of materials that embodies a rider’s personality.

The Large Oi fits 23.8 – 31.8mm fits bars, while the Small Oi fits 22.2mm bars. Need help deciding? Learn more here.

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The Mount

The Mount Knog Knog

What about the handle-bar cables? No worries. Built into the shape of the mount is a cable management system. So not only does it allow the bell to look and sound uninterrupted, it also helps gather your cables (for the organiser inside us all).

The Look

The Look Knog Knog

The Oi bell’s shape originates from its home – the handle bar. Where bells usually protrude up or out, Oi doesn’t. It appears to hover around the handle bars. In one sense, it’s discreet. But in another, it stands out as unrecognisable.

The Sound

The Sound Knog Knog

With a spring-loaded actuator built into the mount, the strike of the bell is firm and fast, allowing a good balance of volume and longevity of sound. Our bell actually has several pitch tones – one core and several supportive higher tones to ensure it’s unmistakable and safely heard.

The Fit

The Fit Knog Knog

What about getting it on the bar? Just pop it over, give the hex screw a quick tighten up, and you’re good to go. For handlebars measuring 23.8 – 26mm in diameter we have supplied a spacer to help the Oi fit snugly and securely to your bars. This can be found discretely tucked into the reverse of the grey packaging insert.

 Knog’s Oi reinvented a 2000 year old domed bell design

Knog’s Oi reinvented a 2000 year old domed bell design

140 prototypes, 1000’s of springs and over 5 years in conception. Reinventing the bell design was never going to quick.

  • Specifications
  • Instructions


H: 16mm x W: 49mm x L:68mm


26 grams

The Large Oi fits 23.8 - 31.8mm bars.

If you don't know which sized bell you need, then check out this how to measure your handlebar guide. You can also download the user guide below.

Oi Classic Japanese Oi Classic French Oi Classic English Oi Classic Dutch

Customer Reviews

Based on 14 reviews
Great bell!

The bell has a clear and loud ring that works very well in alerting others when approaching from behind, and it looks great on my bike!

Elspeth Thomas
Great idea & simple style

I really like this design, the sound is true and clear when rung. No complaints with the sizing, ordering or installation process, however, I've lost my little screw due to clearly not installing it properly! Whoops...

Hi Elspeth,

We have spare screws available to order online, or you can try your luck at a local hardware store - the screw size for Oi Classic is M4x7mm

Rick Iversen
Look for the spacer!

Thought it was either too big in its own, or too small with the rubber spacer included. Turns out there is an additional plastic spacer included in the back of the box, and the instructions aren’t that clear. Just right! Aside from that, looks great and has a nice ding.

Luke Rogowski
Discrete and loud at the same time

Very minimalist and clean look and makes a very clear and loud sound

William Barras
Loud and looks good

The bell works great for its primary function of alerting people that I'm behind them, but the best thing about it is that it doesn't stick out in a weird way on the bike. It fits very seemlessly into the cockpit.