 Many Denver streets have bicycle lanes , and there are over 850 miles of paved , off @-@ road , bike paths in Denver parks and along bodies of water , like Cherry Creek and the South Platte . This allows for a significant portion of Denver 's population to be bicycle commuters and has led to Denver being known as a bicycle friendly city . In addition to the many bike paths , Denver launched B @-@ Cycle – a city @-@ wide bicycle sharing program – in late April 2010 . The B @-@ Cycle network was the largest in the United States at the time of its launch , boasting 400 bicycles . 
