I believe the Bell Metropolis (or Metro) has been discontinued. It is no longer on the Bell website, and they are all on clearance right now.

If you want more protection/durability, then you may want to look at the Pro-Tec SXP line of helmets designed for multi-sport use. They pass multiple certifications, and Pro-Tec claims they can sustain multiple impacts. They are also relatively cheap. I recommend you replace any helmet after a serious crash regardless of manufacturer claims.