Before you buy a bike:
- Stand over the frame to check the height.
- 1" of clearance between your body and the top of a traditional straight top tube.
2" of clearance between your body and a slightly sloping top tube.
- The recommended amount of clearance is the same for men and women
- Wear your cycling shoes, if possible.
A proper road bike fit system is one that helps a rider adopt a road bike fit used by most of the better road bike riders.