For this special course preview, Aaron Gwin and Claudio Caluori chose to ride chainless. Photo by Bartek Woliński/Red Bull Content Pool

For this special course preview, Aaron Gwin and Claudio Caluori chose to ride chainless (click to enlarge). Photo by Bartek Woliński/Red Bull Content Pool​

Last year, Aaron Gwin lit up the World Cup with one of the most memorable victories in mountain bike racing history. Despite breaking his chain early in his run, Gwin managed to pump and tuck his way to a breathtaking win. Will he be able to repeat the performance? We'll have to wait until Sunday to find out (hopefully his chain doesn't break again). Until then, check out this incredible course preview featuring Gwin and Claudio Caluori riding the course - chainless!

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