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 size fits 23.8 – 31.8mm bars, while the Small fits 22.2mm bars. Consult the size guide here to decide which size is right for you. No Ordinary Bike Bell Reinventing a 2,000 year old bell design was never going to be quick. 140 prototypes, 1000’s of springs and over 5 years in conception brought us here. Subtle design that wraps around your handlebar Considered cable management system Beautiful tone that's loud but pleasant (80+ dB) Stronger & louder than predecessor WHAT'S IN THE BOX Oi Classic Bell Hex Key Shims - Spacers for the perfect bar fit. Large size bells only.