1. You need 7 pins. Start on the corners at the top of your pockets. Don't put a pin on the "tailing-side" of your number, so you don't catch wind.
2. Stick the pins through the number, then the jersey, then back through the number. Don't use the holes! Those are for runners
3. Use your steering wheel, or a pillow, or your handlebars because it helps to lay the material out, but you still want to be able to stab!
4. Try it on! Be patient, and don't be frustrated by fixing it. It's like a necktie: you will look and feel like an idiot if you don't get it right!!