I don't think the army with it's standing personnel of just over 25 000 men would have that much of a problems with bikers. The army has coordination, tactics, training for a full scale battle, they're supported by heavy machine guns giving fire support over 700m away, 155mm howitzers, armour, tanks, mines etc.
Even if the bikers have some automatic riffles their effective fire would be something like 300m, with the lack of proper machine gun, it won't be that effective either. Not to mention they have nothing against armour, while the army can blast all of the punkers the bikers occupy with their Carl Gustav's (it has anti bunker ammo), or something else.
Personally if I was a canadian I'd be looking forward to such fire works. The issue however is to find a law to rightfully convict the bikers I believe.