Roadie Bicycle Bell girls press and hold the power

press and hold the power button for 5 seconds to enable/disable the brake sensor function

Anti-vibration

Then turn the adjusting bolt B on the rear derailleur until the arrow on the template points exactly to the centre of the axle of the upper derailleur pulley

Road Bikes or Urban Bikes

Roadie Bicycle Bell girls press and hold the powerThe Osaka Roadie Bicycle Bell is designed with road drop bars in mind. It can mount on the brake hood, on cable housing, and on some flat bar levers (levers need to have flat section less than 9mm deep.) Reversible for right and left hand use. This is a not spring loaded clip; it clamps on with a screw; just turn the bell dome to loosen and tighten.