Repairability determines lifetime. The quickscan describes how bicycle repairability is under pressure from higher parts costs, supply-chain disruptions and limited standardisation. The Quickscan Circular Bicycle by New Economy reports this. The environmental impact and lifespan of bicycles are rarely mapped systematically.
Steering on lifespan and repairability reduces the impact of bicycles most. This is relevant for bicycle manufacturers, designers and organisations in circular mobility.