Bottas admitted his favourite character was Homer Simpson but also figured it would be tougher riding uphill dressed in that guise.
"I only took a six-pack, but I donated to all the spectators and competitors. It was a good afternoon," he said of his winnings.
The former Mercedes driver, who was teammate to seven-times world champion Lewis Hamilton before joining Alfa Romeo, posted pictures on social media of his ride with cans of Duff beer strapped to his waist.
He also rode a 160km gravel race on Sunday, finishing 20th out of 926 entrants.
His partner, Australian professional cyclist Tiffany Cromwell, finished second in the women's race.
Bottas settled for a six-pack after winning his weight in beer
Alfa Romeo driver Valtteri Bottas settled for a six-pack after winning his weight in beer in a cycle race in Colorado during Formula One's August break.
The Finn told reporters at the Dutch Grand Prix on Thursday how he came to compete in a gravel hill climb in Steamboat Springs dressed as the Simpsons cartoon character "Duffman".
"The prize for the best costume was your weight in beer, and I really wanted to win the prize," Bottas said of last week's event.
"I was thinking about it, obviously being mainly an American crowd, so I went for The Simpsons and Duffman."
Bottas admitted his favourite character was Homer Simpson but also figured it would be tougher riding uphill dressed in that guise.
"I only took a six-pack, but I donated to all the spectators and competitors. It was a good afternoon," he said of his winnings.
The former Mercedes driver, who was teammate to seven-times world champion Lewis Hamilton before joining Alfa Romeo, posted pictures on social media of his ride with cans of Duff beer strapped to his waist.
He also rode a 160km gravel race on Sunday, finishing 20th out of 926 entrants.
His partner, Australian professional cyclist Tiffany Cromwell, finished second in the women's race.
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