A bicycle or tricycle that's pedaled by hand, usually with a special crankset/pedal arrangement located in front of the rider.
Learning Group Riding – A great way to learn how to cycle in a group is to practice with a group of friends. Simply pick a route with little traffic and work on getting comfortable following each other closely. Work on taking short “pulls” at the front and maintaining a steady pace geared towards your slowest rider. Talk a lot so that you know how everyone’s doing. Don’t overlap wheels. When it’s your turn at the front, don’t accelerate. Hold the group pace. When you tire, pull off and soft pedal until you’re at the back. With regular practice, you’ll find that group rides are a blast because you can cover ground so much more easily than when riding alone.