I lived there. It’s not just students. Loads of people commute by bike - it’s the quickest way by a mile. It’s only really recently that the council have done more than pay lip service to cycling, though; until then the local pop cycled in spite of the infrastructure rather than because of it. They have the UK’s biggest cycle park at the main station but it’s basically a shopping centre for thieves (bike theft is really bad all round Cambridge) so I think they’ve brought in a key-only area that you have to pay to use. Same at Cambridge North.