Originally Posted by TandemGeek

Make sure you have the right size crank bolt wrench in your pocket or on your multi-tool when you head out for your first few rides with the new cranks and BBs. The daVinci square taper cranks have a tendency to work loose when they're brand new. At the first indication that anything might be amiss (a strange feeling usually on one of the left-hand cranks), stop and check them all. It's also a good idea to check them after each ride for a while.