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We’ve designed a bicycle bell, Oi. We think it’s a bit different. We hope you like it. If you do, why not help us bring it to life?



Bike bells have been domed since they were invented in 1877. In which time we’ve sent man to the moon, cloned a sheep, and created hundreds of different styles of beautiful bicycle, yet not reimagined this simple analogue device. What if it wasn’t a dome? What if it didn’t protrude from your handle bar like a blister?

Oh dear
Oh dear

We set out to design a totally new bell where form and function played an equal part. A bell with a beautiful tone, but also a remarkable style and choice of materials that embodies a rider’s personality. We wanted to embrace a variety of riding genres, without compromising any.


Knog is a bike accessory brand that is well know for its innovative design in bicycle lights and locks. Until now, we haven't focused on the humble bell. So what better way to test a revolutionary new product design than put it up on Kickstarter?
Some Knog characters
Some Knog characters

We're designers first. A small team of hungry engineers and industrial & graphics creatives who like to challenge everything. Especially the basics. Especially the stuff that people don’t think is worth changing. Yep, that’s the stuff we like changing. 


The Oi bell's shape originates from its home - the handle bar. Our design team explored hundreds of iterations in designing the style. Then tested and prototyped different widths, depths, materials, curvature, actuators, springs and more to get to the optimum design. 

Step 1: Scribbling
Step 1: Scribbling
Step 2: CADing (is that a word?)
Step 2: CADing (is that a word?)
Step 3: Prototyping
Step 3: Prototyping

As with all our designs that reach this stage, we have applied for patent and registered the design. //Design Registration applied for: No. 201610483 //Provisional Patent applied for: No. 2016900305


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.  



We tested numerous prototypes to get the perfect pitch, length of ring, and volume. 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. To compare it to a musical instrument, where some bells play a single note, Oi plays a chord. Hear it here for yourself...

The bell-off...


From left to right: Aluminium, Titanium, Brass, Copper, Black
From left to right: Aluminium, Titanium, Brass, Copper, Black

There are five styles. The standard aluminium model comes in 4 finishes: brushed aluminium; brass-plated; copper-plated; and black. The top of the range, "treat yourself” model is made from titanium. 


The bells fit on almost all cylindrical bars. The SML Oi is for the common 22.2mm bar, and with the "spacers" that come in the pack, the LRG Oi is for all bar sizes up to 31.8mm. The Oi will also work on any aero bar with a 16mm cylindrical section (usually near the stem). 




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).

What about getting it on the bar. Again, not a thing. Just pop it over, give it a quick tighten up, and you're good to go. No sliding down the handlebars, no dismantling and re-assembling.

Easy on. No need to remove grips or cables.
Easy on. No need to remove grips or cables.
Manage your cables
Manage your cables



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DISCOVERED BY ... johnboscong

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