At age 55, Lee McCormack is still getting faster, and helping other riders do the same

Lee McCormack is a mountain bike skills instructor and coach, and he's the author of nearly a dozen books, including the NICA Skills Training Manual. He's written extensively on bike fitting and fitness training, and just last year he launched his own bike brand, Mistress Cycles. How have mountain biking techniques changed over the years? What's the difference between a good mountain bike racer,…