Avi Stopper @bikestreets Avi Stopper is founder of the Bike Streets project. Recent Posts This post is supported by Readers like you. Give now. Commentary: The 18-Year Plan to Complete Denver’s Bike Network Is Unacceptable By Avi Stopper | Aug 19, 2019 | 4 Comments Denver's plan to complete its bike network will take 18 years. In a word, that’s unacceptable.