Description The Knog Oi Prima bell has been designed to wrap around your handlebars for stealth & style. 80 decibels – loud but pleasant, with a distinct tone Considered cable management system built into the bell’s shape. Built to last with a robust spring design. Beautiful tone that’s loud but pleasant. Available in two sizes for a perfect fit to your bars 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. Fitting & Sizes The Large size fits 23.8 – 31.8mm bars, while the Small fits 22.2mm bars. If your handlebar is any bigger than 22.2mm then you will need to choose the large bell. The Larger Oi includes shims that will allow you to attach the bell to bars 23.8, 25.4 and 26mm. If your handlebar in the middle looks ‘normal sized’, it’s probably 25.4mm and you’ll need a large bell. If your handlebar looks overly big in the middle, it’s probably 31.8mm and you’ll need a large bell. What about the handle-bar cables? No worries. Built into the shape of the 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). What about getting it on the bar? Just pop it over, give the hex screw a quick tighten up, and you’re good to go. No sliding down the handlebars, no dismantling and re-assembling. Knog Oi Prima Bell Specs Weight – L: 28 g, S: 20 g Dimensions Large: H 15mm x W 50mm x L 67mm Dimensions Small: H 14mm x W 38mm x L 57mm Large size fits handlebar widths: 23.8 – 31.8mm Small fits handlebar width: 22.2mm Nylon & TPU hammer, CNC machined striking surface Not Aero Bar compatible