Some of the world's best mountain bike riders will head to Semmering in Austria next week for a unique 24-hour downhill race.
Some 370 riders have confirmed their places in the third Race The Night at Bikepark Zau[:ber:]g, and they're set to be joined by stars such as World Cup downhillers Nathan Rennie and Matti Lehikoinen, and big mountain freerider Matt Hunter.
The race starts at noon on Saturday 15 August with a Le Mans-style start, where participants have to run up the mountain to collect their bikes.
They then have to cover a 2.2 mile (3.5km) course as many times as possible in 24 hours, using a cable car to get back to the top after each run.
Last year's winner, Austrian Martin Strasser, managed an incredible 159 runs, or around 350 miles (560km). He didn't take a single break and spent nine-and-a-half of the 24 hours riding (with most of the rest spent on the cable car).
Go to www.bikeparksemmering.at for more information.