10月挑战周末 October Weekend Challenges
10 月 24 日周末，举办 3 场活动，适配各级别、各类骑行。
3 events for all levels and types of rides over the weekend of October 24th.
其他挑战 Challenges in your own time
“开放挑战” 可自选时间完成：For “Open” Challenges done whenever works for you we have:
三山挑战在一天内完成250公里，4000米爬升。The Triple done in a day over a stunning 250km 4000m route.
“徽州500挑战”——全年任意时间，在72小时内完成500公里无支援骑行！And a 500km Self Supported Ultra, Huizhou500, which you have three days to complete.
