I General User Manual 4922.3.2 Hub dynamoThe hub dynamo is inside the hub of the front wheel. Thehub dynamo is highly efficient, and the wear is extremelylow.Hub dynamoThere is a switch or a sensor on the back of the front lighton some bikes with a hub dynamo. The sensor switchesthe light on automatically in the twilight or when passingthrough a tunnel. Other models have a switch on the han-dlebar that switches the lighting on and off.If you want to remove the front wheel, you first needto remove the connecting terminal for the light cable.When you put the front wheel back on, turn it so thatthe connecting terminal for the light cable is on theright-hand side (facing in the direction of travel). Ifthe connecting terminal is on the left, the dynamo willnot be able to turn properly or the lighting systemmay stop working. Ensure correct polarity of the con-nections.22.4 Failure of the lighting systemIf the lighting system fails or develops a fault whenriding in the dark this could cause a serious accident.Have the fault repaired at a professional bike work-shop before you continue your journey.Extremely powerful (rechargeable) battery-operated bicy-cle and outdoor lights are available from some retail out-lets. With some exceptions, use of these lights on publicroads is not permitted.
