Lesley Tomlinson and Gina Grain from TaG Cycling really know their stuff. With many years of competitive cycling between them, these past Olympians explain what you can achieve with a great pedal stroke and a good upper body position. Sharron Bates is in training for GearUp4CF, a charity bike ride in Canada from Vancouver to Banff. Contribute to Sharron's efforts and cystic fibrosis research at her blog: http://beyondyoureye.com/sharronblog. To contact TaG Cycling: http://www.tagcycling.com.