75 XSS (Per Day), for 75 Days: A New Self-Challenge
75 Days of 75 XSS (Xert Strain Score) Points – Let’s See Where This Leads 75 XSS per day, roughly 5 days per week? Can I achieve this? The Xert Strain Score (XSS) is a volume-measuring tool that looks at a cyclist’s time, wattage, energy expenditure, and overall fitness signature. The calculation is unknown, but […]