• bikes with potential or actual significant malfunctions,
• without working front and back lights (in the dark, dusk or dawn),
• without a helmet (whether mandatory or not, by the law).
At DBB, we are trying to be more inclusive, and — provided you are subjectively a good bike handler — won’t ask you to leave in those cases. However, there is a rule — which is formulated below
, after an explanation of why it is in place.