Build them and they will come – by bicycle.

That is the hope for the first of more than 40 Opal-activated bike sheds to be built at train stations in Sydney and areas further afield over the next three years.

And for Matt Hearn, from Prospect in Sydney's west, the opening of a new covered and secure bike shed at Blacktown Station is not before time.

His bike was stolen last year, and he only recently replaced it.