the material on the bottom of most shoes running / cycling shoes; usually made of hard carbon rubber in running shoes and hard plastics in cycling shoes.
Take on one of the toughest cycling challenges in the world! Can you get to Vegas in 24 hours?
the material on the bottom of most shoes running / cycling shoes; usually made of hard carbon rubber in running shoes and hard plastics in cycling shoes.
Take on one of the toughest cycling challenges in the world! Can you get to Vegas in 24 hours?