Don't know how to take that rear wheel off of your bike? Is the chain making things difficult? Learn how to remove your rear wheel if you have to change your bike tire or fix a flat.
This video tutorial will show you how to fix a flat tire and also how to change the tire itself. Don't wait until you're out on the course at the races to learn how.
Top swimmers rotate the core of the body from one side to the other while keeping the head fixed. When you rotate in this way, you move through the water more like a fish, maximizing your efficiency.