2023.10.28 Dirty | The Big Dirty

The classic Big Dirty that has now been running for a few years. All kinds of surfaces, all kinds of gradients, all kinds of cycling, lots of fun, a big day out and well supported!


2.30h by train. Direct and non-direct train options and the station is 10 minutes from Wildhomestay. 4h Drive from Shanghai or 2h from Hangzhou. We also might provide a bus at 5pm leaving from Shanghai stadium.
8pm Briefing for new riders.

6 am Breakfast
7 am Challenge start
5:30pm Challenge Ends
BBQ at 7pm
Awards at 8pm

8am Breakfast
9am Morning activities, cycling, running, hiking, relaxing.
1230 Lunch
2pm departure.

2023 Dirty | Challenge #3 The Big Dirty

Clean 2023 #3 Basic Info

  • Distance: about 160km
  • Elevation: less than 3000m Elevation Gain
  • Segments: 6 or 7 segments on climbs and flatter sections.
  • Sufaces: Mix of everything with focus being bad concrete country lanes.
  • Climbs: one main one and four shorter ones
  • Steepness: 4.5 out of 5 in steepness scale but not for long. Spin!
  • Toughness: 4.5 out of 5 in toughness scale. Suitable for a high level of fitness and skills. Assume you might finish in the dark.
  • Bike Type: Any bike with 32mm tires. Suggest 38mm plus gravel tires.
  • Gear Type: Suggest gravel 38 to 50mm. Lots of gears makes for a funner day. Also suggest disk brakes, fresh tires and fresh brake pads.
  • Support: 4 food & drink stops / support stops. After Challenge carbs.

Course Notes:

We will double-check the exact course conditions a week or so before the event. A WeChat group will be set up for this challenge and we issue GPX / Maps / Route / Strava segments to that and during race briefings.

Categories & Awards

  • 1st, 2nd, 3rd Place Female & Male Overall Winner
  • 1st, 2nd, 3rd Place Master Winner
  • Fastest Young Person
    • Some fun awards

Prizes are kindly provided by


Please understand these rides are not professional races but small scale amateur cycling challenges. To maximize social fun and safety points are given for various challenging segments. The rest of the day is meant to be spent riding and chatting in groups. Cool refreshments provided on-route along with a few fun awards. Please be realistic, these are not aimed at the beginner and are demanding, in amazing but challenging landscapes.


Please go to our WeChat channel booking system or Mini Site booking system to book using alipay. First please choose a room. If rooms are full we can help organize other places in the area! Various local new places have come online so contact our service account. Then choose your challenge entry, bus, and bike (if you need one). Confirmation will be wechated or emailed and please make sure you leave your wechat id. We will add you to a wechat group and the final itinerary, GPX / waiver and info will be provided through that group and during a briefing.

  • Entry is 298 RMB
  • Shared rooms start from 296RMB for 2 nights including breakfast.
  • Saturday post race food is included in sign up and the evening bbq is 150RMB per head including free flow beer and soft drinks.
  • If we can get more than 10 people and bikes then a bus will run Friday after work from Shanghai and return Sunday PM.

Update: our rooms are running low for this weekend! Check with our online booking system to see if any are available. If not our service account can help book a room for you in one of our nice partner houses!

WeChat Clean Booking

Alipay Clean Booking

Checkout our main DC page and recaps of many challenges: www.dirtyclean.cn

Need a bike?

Need to rent a great Specialized Diverge adventure bike?

One of the best selections of adventure bikes for rent – Tanqi Bike Rental

New to DirtyClean Challenges or cannot make the briefing? Please read the Bible.

Also check out our recap pages for previous Big Dirty’s and various videos…..

2023 Dirty Queen & King Award

The female and male with the highest number of points of the combined 2023 Dirty and Dirty Ultra Challenges will each receive a pair of top end S Works Recon Shoes, a customized jersey and their names carved on our winner’s board and placed in the cafe. Prizes will be presented in December.