It's not the bike-specific model, so you'll have to invest in a mount and a cadence package to get functionality on a bike. The cadence sensor unit runs $49.99 list, the mounting kit $23.99, so you're looking at $235 once you pick those up. You can pick up the multisport packet from REI for $259.99, so it's not quite as good of a deal as it seems at first glance. Still, that's a good price on a general-purpose HRM.