Oi Prima Bike Bell

$32.99 USD

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).  

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
Color
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.

Free shipping to Continental USA on orders over $65 and just $8 on orders under $65. We'll ship it asap, and have it delivered within 2 - 5 business days.

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. We'll even pay the shipping. For more information, please see our Returns & Warranty page.  

Shipping on Knog's US website is available to Continental USA customers only. If you're shopping from another location, please visit our international store.

Customer Reviews

Based on 40 reviews
50%
(20)
15%
(6)
23%
(9)
3%
(1)
10%
(4)
J
Jonathan Dicker
An order of magnitude better than the original

I bought one of the original Knog Oi bells years ago and quite liked the slimline design with the (what I thought to be at the time) a clear ring, but I felt that the design and action of the striker was always a little bit off. After damaging the striker spring on my original Oi bell, I decided to go for the oi Prima.

As I said in the title, this bell is an order of magnitude better. Swapping out the bell took 5 minutes.

What I like:
- Still the excellent slimline design
- The sound is clearer and louder, with a nice long decay to the ring
- The striker and action are so, so much better than the original

I would absolutely recommend this bell to anyone looking to buy a better bell than the one they have.

J
Josh Winsor
Dings real good

Slapped this bad boy on and was voicing my opinions to traffic and alerting pedestrians all over the ding dang place. Super sleek, nice looking piece of product. Dings real nice.

H
Harrison Easther
Fit on aero bars

Great bell. But FYI it took some adjustment to fit on my aero bars (Cervelo aspero), but after cutting the supplied rubber and using half of it I got a snug fit - it was too loose without it and too tight with the whole piece. It would be good if it came with a slightly thinner rubber piece to avoid plastic on carbon contact.

D
Dane Melby
Ring my bell

Love this thing. The look the ring. Seems well made. My bike chose well, I'm just the credit card for the Beach Commander's whims.

B
Bazz C
A point of differance.

OI Prima bell is a fine piece of jewelry, for my beloved MTB , It has a unique ring tone, that is sweet sounding and different from traditional bells. summoning pedestrians and trail hog's to move out of my way.

123
"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.

CRAFTED BY A TEAM THAT REFUSE TO SETTLE

Join us in The Lab, with Knog's Design Director, Anton Van Maanen as we chat about why design should always go the extra mile.
READ MORE

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

Technical Specifications +-

WEIGHTL: 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 WIDTHL: 23.8 - 31.8 mm bars, S: 22.2mm 
HAMMER TYPEGF Nylon and TPU
AERO BAR COMPATIBLENo

User Guides +-

Language Download
Oi Prima - English

Customer Reviews

Based on 40 reviews
50%
(20)
15%
(6)
23%
(9)
3%
(1)
10%
(4)
J
Jonathan Dicker
An order of magnitude better than the original

I bought one of the original Knog Oi bells years ago and quite liked the slimline design with the (what I thought to be at the time) a clear ring, but I felt that the design and action of the striker was always a little bit off. After damaging the striker spring on my original Oi bell, I decided to go for the oi Prima.

As I said in the title, this bell is an order of magnitude better. Swapping out the bell took 5 minutes.

What I like:
- Still the excellent slimline design
- The sound is clearer and louder, with a nice long decay to the ring
- The striker and action are so, so much better than the original

I would absolutely recommend this bell to anyone looking to buy a better bell than the one they have.

J
Josh Winsor
Dings real good

Slapped this bad boy on and was voicing my opinions to traffic and alerting pedestrians all over the ding dang place. Super sleek, nice looking piece of product. Dings real nice.

H
Harrison Easther
Fit on aero bars

Great bell. But FYI it took some adjustment to fit on my aero bars (Cervelo aspero), but after cutting the supplied rubber and using half of it I got a snug fit - it was too loose without it and too tight with the whole piece. It would be good if it came with a slightly thinner rubber piece to avoid plastic on carbon contact.

D
Dane Melby
Ring my bell

Love this thing. The look the ring. Seems well made. My bike chose well, I'm just the credit card for the Beach Commander's whims.

B
Bazz C
A point of differance.

OI Prima bell is a fine piece of jewelry, for my beloved MTB , It has a unique ring tone, that is sweet sounding and different from traditional bells. summoning pedestrians and trail hog's to move out of my way.

123