Should I lock up two bikes with one U-lock or should I lock them up separately? I live in NYC but I don't lock my bike up overnight usually only during the day time when I go biking with my gf to parks or grab dinner, lunch, etc. It would be locked up 1 hour max but mostly 30-45mins I would say. Should I get the Kryptonite New York LS Bicycle U-Lock ( 4-Inch x 10.25-Inch) to lock up both bikes together on a pole or should I lock them up separately with two cheaper U-locks? Cause if the bike thieves break one lock he gets two bikes. Should I get a Kryptonite or OnGuard? Which one's are better?