now 2 months in use, as it suggests in the winter you have to see. + Is fixed at + Very quiet for a roller dynamo + Good mounting screw if you have 2 open-end wrench If mass is applied to the lamps do not need the 2 mass at Dynamo -The Clips that can hold the cable fall before when things get rough, have already so a stick lost. but they are compatible with each other so you have a spare