Name: Oi Prima Bike Bell
Brand: Knog
SKU: 13413
Price: 49.99 AUD
Availability: InStock

Oi Prima bike bell features our signature wrap-around bell design and our newest innovation - WAVETEK hammer technology. The whip of this new hammer design helps to create a beautiful and consistent bell tone, while being built for robust and long-lasting use. Available in two sizes to ensure the correct fit on your handlebar (see our size guide for info on how to measure your bar diameter).

Handlebar Diameter:

Large (23.8 - 31.8mm)

Small (22.2mm)

Colour: Anthracite

Anthracite

Primer Grey

Quantity:

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FREE DELIVERY AVAILABLE

30 DAY RETURNS

2 YEAR WARRANTY

Our signature wrap-around design.
WAVETEK - the latest in bell technology.
Built to last with a robust spring design.
Beautiful tone that's loud but pleasant.
Available in two sizes for a perfect fit (see below).

Small Oi Prima for 22.2mm handlebars diameter.
Large Oi Prima for 23.8 - 31.8mm* handlebar diameters.

*Shims / Spacers included with all Large size bells for the perfect bar fit. Consult our size guide for more information.

Oi Prima Bell
Hex Key
Shims - Spacers for the perfect bar fit. Large size bells only.

PLEASE NOTE:

Orders cannot be amended once placed.
Orders are dispatched from Melbourne, Australia.
EU & UK orders are inclusive of Duties & Taxes.
Please note that international orders outside of the UK & EU may be subject to additional customs and duty charges to be paid by the receiver. Knog has no control or liability in regards to these charges.
We're not able to ship to the United States from this site due to the continued tariff changes. Shop on Knog's US Store for Free Shipping over US$65 and enjoy fast delivery.

2025 CHRISTMAS CUT OFF DATES

Need Knog delivered by December 24th? Here's when you need to order by.

All International Delivery

DHL Express: Order by Tuesday 16th December 2025

Australia

VIC, NSW, QLD, SA & TAS: Order by Wednesday 17th December 2025
WA & NT: Order by Tuesday 16th December 2025

OUR SHIPPING RATES

Australia

Standard A$10 (3-6 business days)
Free Standard Delivery when you spend over A$100

Europe

€20 Premium Delivery via DHL Express (4 - 7 business days)
FREE when you spend over €100

United Kingdom

£15 Premium Delivery via DHL Express (4-7 business days)
FREE when you spend over £100.
Please note shipping to Northern Ireland is not currently available

Asia + Canada

US$15 Premium Delivery via DHL Express (4-7 business days)
FREE when you spend over US$100.

New Zealand

A$15 Premium Delivery via DHL Express (4 - 7 business days)
FREE when you spend over A$100

United States

Please note we're not able to ship to the United States from this site due to the continued tariff changes. Shop on Knog's US Store for Free Shipping over US$65 and enjoy fast delivery.

Returns & Exchanges

We stand behind everything we make and want you to be happy. If for any reason you're not satisfied with your purchase, return it within 30-days for a full refund. For more information, please see our Returns & Warranty page.

I haven’t used the bell. I’m giving it to someone for Christmas. Package looks pretty good

Pretty good, but ring isn’t always consistent.

I love the minimalist profile of the Oi Prima bike bell, and the color blends right in with my bike’s handlebars and the profile doesn’t interfere with any gear.

The one complaint I have is it’s difficult to strike the bell in a way that makes the actual bell sounds consistent, or at a consistent volume. This makes it more of a nice perk when it works, versus consistent communication equipment.

Discreet and stylish but the Luxe bell emits a stronger and nicer sound.

Slim, mimimal, with Big Sound (((( ! ))))

I’ve never been comfortable with traditional bike bells—too big, bulky, sounding weak. The Oi Prima from Knog (Canadian-Australian Commonwealth brothers and sisters) offer an incredible opportunity to upgrade my cycling kit without having to wallow in the depression caused by purchasing gear from fascist, racist, totalitarian junk-lords from the usa. Knog has it right—this bell, their bar-mounted lights (I now use the 1300 Blinder), and their helmet-mount lights (I also now use their Blinder X 2300 helmet kit)—ALL of these upgrades have thoroughly met my expectations! Commonwealth brothers and sisters: amazing products, incredible ingenuity, R&D, and providing tech which cyclists require (both on trail and urban) for staying safe! Canada, Australia, New Zealand, and the EU—ALL BROTHERS AND SISTERS partnership—ANTI FASCIST!

Doesn’t fit handlebars

U fortunately while I love the product it doesn’t fit the new styled pval handlebars on my Giant TCR

1 2 3

"RE-ENGINEERED DESIGN FOR PERFORMANCE AND LONGEVITY"

Subtle, until you strike it.

Every feature is fine-tuned for clarity, durability, and effortless installation.

WAVETEK

The innovative Oi Prima WAVETEK hammer delivers a louder, longer-lasting, and more consistent chime. The subtle wavelike motion creates a crisper, clearer tone that rings at 80+ decibels.

REFINED AESTHETIC

Every detail is meticulously considered. From tapered edges - inspired by the aerodynamic intake of a jet engine - to the minimalist silhouette and intricate laser etching.

ROBUST BUILD

The hinged clamp system makes installation quicker, easier, and secure whilst the bell's spring remains hidden within and can’t be overextended for a cleaner look that is engineered for lasting strength.

BEAUTIFUL SOUND

Loud enough to cut through traffic and trail noise, but tuned to be pleasant. The improved hammer and striking surface work together to produce a crisp, clean and considerate sound.

‘It's very loud.
It's very good-looking.’

Technical Specifications +-

WEIGHT	L: 28 g / 0.99 oz, S: 20 g / 0.7 oz
DIMENSIONS	L: H: 15 mm x W: 50 mm x L: 67 mm, S: H: 14 mm x W: 38 mm x L: 57 mm
FITS BAR WIDTH	L: 23.8 - 31.8 mm bars, S: 22.2mm
HAMMER TYPE	GF Nylon and TPU
AERO BAR COMPATIBLE	No

User Guides +-

Language	Download
Oi Prima - English

I haven’t used the bell. I’m giving it to someone for Christmas. Package looks pretty good

Pretty good, but ring isn’t always consistent.

I love the minimalist profile of the Oi Prima bike bell, and the color blends right in with my bike’s handlebars and the profile doesn’t interfere with any gear.