Gone are those wonderful days I could just jump on a bike and ride. As a Geezer Rider my pre-flight check list is long. Often my wife says, "You ain't left yet?". I do appreciate that she is not saying, "You ain't dead yet?". Then again I have been a victim of an entire family's intervention. Another accident, my fault or not, no more bike riding. RATS! I keep that in mind every time I roll down the driveway... Ha

As to the OP: 20 minuets minimum. (and that's on a short ride)