If you can't bring your bike inside your building then no question steel is the way to go. NYC has some laws to encourage building owners to provide bike storag

If you can't bring your bike inside your building then no question steel is the way to go. NYC has some laws to encourage building owners to provide bike storage though, e.g.: https://www1.nyc.gov/html/dot/html/bicyclists/bikesinbuildings.shtml https://www1.nyc.gov/html/dot/html/bicyclists/bikesinbuildin...