SR prohibits carrying ordinary, unfolded bicycles, electric scooters and similar devices onto SRT trains. Its official rules describe an exception for items folded or completely disassembled and placed in a bag, excluding congested periods such as holidays and commuter rushes. SR defines congestion in part as more than 40 standing passengers aboard a train or more than five in a carriage aisle. Store any permitted item without blocking passageways, and do not ride bicycles or scooters inside stations or on platforms. The general allowance is up to two items that a passenger can carry personally without occupying seats or aisles. Check with staff before travel because actual crowding can change.