What is the proper positioning of the bicycle seat?
That’s different for everybody, believe it or not. The clearest sort of format for that is when you’re pedaling at the bottom of the cycle—so when your leg is extended as much as can be—you’re just about straight-legged, but not everybody is comfortable with that. Some like their leg a little more bent, some like their leg a little bit more straight, so it's really a preference of what you want.
The biggest thing from a size standpoint is to make sure that you can stand off the seat flat-footed on the ground comfortable on the frame—you don't want the frame too tall where it is digging into you. You also don’t want it too low where you have to have the seat post way too high because there’s actually a point where the seat post is too high and its not safe.
Find tips on riding bikes in traffic and in groups, as well as bicycle laws in the New York metro area, here.
Chris Wogas is the president of Bike and Roll NYC, which offers bicycle tours and rentals throughout New York City and Hoboken, NJ.