los angeles is perfect for bike transport. it's sunny and doesn't get too hot or too cold most of the year (in the LA basin proper, the san fernando and inland valleys are a different story). the city government is pro bike path and installing more bike lanes every day. biking is faster during the 6 hours of rush hour a day. most amenities are within 2-3 miles (~15 minutes) of where you live. you can take your bike on buses and trains for the daily commute.

the biggest challenge is bike security (not getting it stolen). bike racks and locks are a poor solution if unattended. if we could put bike racks right in front of the gate attendant booths that most public parking garages have, it would be a much better deterrent to theft. and for residential buildings, you could have lockers or a locked bike storage room (possibly with security cameras too).