in BC's hunting synopsis page 18 (22 pdf file):
You should also know it’s unlawful:
...
to discharge, carry or have in possession
a firearm containing live ammunition in
its breech or in its magazine attached to
the firearm, in or on a railway car, motor
vehicle, sleigh, aircraft, bicycle or other
conveyance.
so you can't have the rifle loaded while riding and you can't fire it while in contact with the bike.
You should also know it’s unlawful:
...
to discharge, carry or have in possession
a firearm containing live ammunition in
its breech or in its magazine attached to
the firearm, in or on a railway car, motor
vehicle, sleigh, aircraft, bicycle or other
conveyance.
so you can't have the rifle loaded while riding and you can't fire it while in contact with the bike.