Official Cap of Monster Track XX 2019. Monster Track is the premier NYC alleycat race now in its twentieth year. The extremely high intensity race is specifically for brakeless, fixed-gear bicycles and takes place in New York CIty. Monstertrack is the toughest race in North America, attracting racers from all over the US, Europe and Japan. Cinelli has long been sponsor of the event and is supporter the worldwide bike messenger community.