Knog Oi Classic Bell


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Bike bells generally look & sound a bit ugly. But why? What if they looked sexy & sounded like an angel playing a glockenspiel?

The bells fit on almost all cylindrical bars. The Small Oi is best for the common 22.2mm bar, and with the "spacers" that come in the pack, the Large 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).


  • SIZE: Small bell fits bars 22.2mm diameter // Large bell fits bars 23.8mm - 31.8mm (How to measure your handlebars).
  • WEIGHT: Small 18g // Large 28g
  • MATERIALS: Aluminium with Nylon mount & acctuator
  • BIKE ATTACHMENT: Nylon clamp with hex screw to secure bell to your bike. What about getting it on the bar? 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.


  • STYLES: Brushed Aluminium, Black, Brass, Copper
  • CABLE MANAGEMENT: Built into the shape of the Oi 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)
  • Road
  • Cyclocross
  • Knog

How long will it take to arrive?

Please check the stock availability notice on your item when placing your order. This item is:

How will I know it has been sent

You will receive an email to confirm when your item has been sent.

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Please allow 10 working days from the shipping date of your order before notifying us of any late deliveries.

It may be advisable to check with your neighbors to see if your delivery has been left with them, check any places it could be left such as: garage, porch, or behind garbage cans if it was too big to fit through your mailbox. Contact your local post office to see if the item has been returned to the depot as undelivered and awaiting collection.

If I'm not completely happy with my item?

Please see our returns policy.

Customer Reviews

Overall Rating : 4.45 / 5 (11 Reviews)
  • 7 5 star reviews
  • 3 4 star reviews
  • 0 3 star reviews
  • 1 2 star reviews
  • 0 1 star reviews
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Top Customer Reviews

Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.

Nice tone and aesthics, but fragile

Similar to many others, I wanted something that fitted on my road bike bars without looking dorky. The ring is great when it works, and once you've adjusted your cabling to clear the bell it fits fine. Here's where the story is not so happy - it is very easy to get the spring on the hammer out of shape, and once that happens, you need to replace the whole unit. That's fine under warranty and if you've kept the receipt, but this time I didn't, so I'm all out of luck. (BTW I didn't purchase it from this site)

Great bell, if you have space

I know, sounds weird,after all its only a little bell. The problem is if you have cables or other bits that may touch it, it renders its ding useless ( a sorry tale I can tell you ) Once you get the cables out of the way and move it to a clear spot on my obviously overcrowded bar, it ring a ding dings beautifully.

Kong Oi Classic Bell

Very nice bell, easy to fit and has a nice tone to the ring which does not offend pedestrians. I would recommend it as an alternative to the standard bell.

Great ping

This has the nicest, non-agressive sound. Say “Hey, I’m there.” With a smile.

It's a bell with a lovely note 😊

After my tandem bell broke after some 5 years I did some research and the Knog offering was top of the list. Fits discretely and a nice sound. My tandeming partner now has a second option to an "excuse me "

Ring my Bell

Not being a fan of a bicycle bell for aesthetic reasons, I needed a bell for my trail bike that would do the obvious when approaching others from behind. The Knog OI fits discretely on my bars. It Is a good design, well made and was very easy to fit. It has a good ring to it and has not been affected by the riggers of of road riding.

Knog IO Classic Bell

This bell is light weight and low profile. It has a beautiful tone. The bell is a bit low in volume.

Knog classic bell

Excellent bell with a lovely loud tone. Bought one for each of my three bikes, look sleek and blend in well on the bars.

Sick of yelling out for pedestrian

I got the black one which is almost invisible on my bike. Sick of yelling for people o the road. Much easier with the bell and it's really loud

Very small and Nice

The design is very nice, it works very well and is well heard. I recommend it