Q&A #70 - Preparing for a windy bike course; Running outside in the cold versus the treadmill; Two-stroke breathing versus bilateral breathing; How to add training volume safely; When to change bike tires How can you prepare for a windy bike course when most of your training is indoors?  Is it better to run on the treadmill or outdoors in winter in sub-freezing temperatures? How do you dress for cold outdoor running?  When should you breathe every two strokes and when should you breathe bilaterally? What are best practices for increasing your training volume safely? When is it time to change bike tires?    LINKS AND RESOURCES: That Triathlon Show website  Coaching Training Plans Endurance Innovation 25 - Mikael Eriksson on Frequency vs Duration   SPONSORS: ROKA - The finest triathlon wetsuits, apparel, equipment, and performance eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Get 20% off your entire order with the discount code TTS20.   Precision Hydration - One-size doesn't fit all when it comes to hydration. Take Precision Hydration's FREE sweat test and learn how you should hydrate. Use the discount code THATTRIATHLONSHOW15 to get 15% off your order OR use the code THATTRIATHLONSHOW and get your first box for free.   RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing.    CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.