a sprocket attached directly to the rear hub on a single-speed bike and mounted on a cassette on a multi-speed bike.
Take on one of the toughest cycling challenges in the world! Can you get to Vegas in 24 hours?
a sprocket attached directly to the rear hub on a single-speed bike and mounted on a cassette on a multi-speed bike.
Take on one of the toughest cycling challenges in the world! Can you get to Vegas in 24 hours?