I'd be fitting vectors to the same chainset as your mate's. Is there no allen key option to install pedals? Sounds like it's not a very good idea, if I want to swap them from road to track bike at least once a week.
It's a very good idea. Pedal spanners are how you fit pedals, not poxy allen keys, even if it is an option.
It's a very good idea. Pedal spanners are how you fit pedals, not poxy allen keys, even if it is an option.