The Knog Oi Classic Large Bike Bell wraps around handlebars with a subtle design, loud pleasant tone, and built-in cable management for any ride. This low-profile bike bell fits 22.2-31.8mm bars, with spring-loaded hammer producing 80+dB sound. The elegant design hides cables while staying durable and stylish. Lightweight and easy to install, it delivers clear, safe alerts for every cyclist. Buy your bike bells at Halfords, the UK's largest bike accessories retailer.