Knog Oi Prima Bell - Anthracite Small

The primary difference is the handlebar diameter they are designed to fit. The Small bell is for 22.2mm bars, while the Large bell accommodates a wider range from 23.8mm to 31.8mm and includes shims for a precise fit.

WAVETEK technology is an innovation in the hammer design that creates a more consistent strike on the bell's ring, resulting in a beautiful, balanced, and pleasant tone.

The Oi Prima is designed for standard round handlebars. Its wrap-around design may not fit optimally on heavily shaped or aero handlebars. Please check your handlebar diameter and shape for compatibility.

No, the Oi Prima is designed specifically to mount onto the handlebar itself. Its unique design aims to integrate cleanly without interfering with other controls.

The bell is built with durable materials for regular use. However, like most bike accessories, prolonged exposure to harsh weather can affect its longevity. It is recommended to keep it dry when possible.

The box contains the Oi Prima Bell, a Hex Key for installation, and Shims/Spacers (included only with the Large size bells for a perfect bar fit).

The bell is designed to produce a sound that is loud enough to be heard by pedestrians and other cyclists in typical riding conditions, while remaining pleasant and not overly harsh.

Ensure the bell is securely mounted and not loose. Check that the WAVETEK hammer mechanism is free to move and not obstructed. Verify you have the correct size bell for your handlebar diameter.

Tighten the clamp screw using the Hex Key. If using the large size, ensure the correct shims are installed and providing a snug fit.

Loosen the clamp screw completely. Ensure the bell is correctly oriented around the handlebar. For the large size, try different shim combinations for a better fit.

Check for any debris or obstructions around the lever mechanism. Gently flex the lever to dislodge any potential blockages. If the issue persists, contact customer support.