Event Overview
The Copper Triangle is a legendary alpine cycling event that takes place in early August 2026, starting and ending at the Copper Mountain Resort in Colorado. This 79-mile loop is not just a ride; it is a high-altitude odyssey that takes cyclists over three of the most iconic mountain passes in the Rocky Mountains: Fremont Pass (11,318’), Tennessee Pass (10,424’), and Vail Pass (10,662’). The event has a rich history as a classic Colorado 'gran fondo' style ride, attracting thousands of riders who want to test their climbing legs against some of the most breathtaking scenery in North America.
Course Details & Terrain
This is a true mountain course with nearly 6,500 feet of total elevation gain.
Fremont Pass: Leaving Copper Mountain, you immediately begin the ascent of Fremont Pass. It’s a long, steady grind that requires a disciplined rhythm. At over 11,000 feet, the air is thin, and your power output will naturally be lower than at sea level.
Tennessee Pass: After a descent into Leadville, you tackle Tennessee Pass. This is the 'easiest' of the three, but the cumulative fatigue starts to set in here. The descent toward Minturn is fast and exhilarating, offering some of the best views of the ride.
Vail Pass: The 'sting in the tail.' This final climb is mostly on a dedicated bike path rather than the main highway, which offers a beautiful, car-free experience. However, the grades can be steep in sections, and after 65 miles of riding, it requires significant mental toughness to reach the summit before the final descent back to the finish.
Who Should Enter? (Beginners vs. Experienced)
For Beginners: This is a serious undertaking for a beginner. You must be comfortable with long descents and have at least a few months of climbing in your legs. However, the event is extremely well-supported with aid stations and mechanical support, making it a safe way to experience 'epic' mountain riding for the first time.
For Experienced Athletes: For the seasoned climber, the Copper Triangle is a benchmark event. It’s an opportunity to test your high-altitude pacing and nutrition. Many elites use this as a training ride for even longer events, while others treat it as a race, attempting to set 'personal best' times on the timed segments of the passes. If you love the feeling of 'dancing on the pedals' at 10,000 feet, this is your event.
Coach Raye's Race-Day Pro Tips
- Hydrate for Altitude: High altitude is incredibly dehydrating, even if you don't feel like you are sweating. Start sipping electrolytes at least 48 hours before the event. On the bike, aim for at least one bottle per hour, even on the long descents.
- Master the 'Mountain Pacing': Do not attack the first pass. It is tempting when your legs are fresh, but the thin air at the top of Fremont Pass will punish you if you go into the red too early. Keep your heart rate in Zone 2 or low Zone 3 for the first two climbs.
- Layer Up for Descents: Even in August, the temperature at the top of an 11,000-foot pass can be 30 degrees colder than in the valley. Bring a lightweight, packable wind vest (gilet) or jacket for the long descents to prevent your muscles from seizing up in the cold.
How to Train for This Event
Training for the Rockies requires a blend of sustained power and metabolic efficiency. Raye, the AI endurance coach, designs adaptive cycling plans via WhatsApp that prepare you for the unique demands of the Copper Triangle. If you don't live at altitude, Raye incorporates specific 'big gear' low-cadence intervals to simulate the resistance of mountain climbing, alongside threshold work to boost your aerobic ceiling. Cross the finish line at Copper Mountain with strength to spare by training with a plan tailored for the peaks of 2026.