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Challenge Yourself

  • CIRCA Metric Century (100km)
    Sat, May 22
    Berkeley
    Cycle your way across the classic Bay and Richmond bridges in one day! You'll cover over 100km (~63miles)!
  • CIRCA Starter 100
    Sat, Jun 19
    Location varies-Oakland, Alameda, Berkeley
    Brand new to cycling and want to get a hang of riding longer? Join this beginner friendly 4-week training program We’ll gradually increase mileage, elevation, and have accomplished 100 miles in 1 month!
  • CIRCA Century Training Rides - 8 Weeks
    Sat, Aug 07
    Location varies
    Does completing 100 miles in one day sound daunting? Not with this program. Train your way to complete a century ride (100 miles) in Fall 2021 where you'll ride with a group of 5-10 others to support you along your journey.