Web counterculture of tinkerers `` hacks '' bikes into faster electric bikes . Engineer Justin Lemire-Elmore predicts a `` bicycle revolution '' within 20 years . In U.S , 300,000 e-bikes sold 20 years ; 22 million in the China . Many of them believe they 're helping to create future communities that will have fewer polluting vehicles and less traffic congestion . Both sides acknowledge animosity between e-bikers and traditional bicyclists .
Web counterculture of tinkerers `` hacks '' bikes into faster electric bikes . Engineer Justin Lemire-Elmore predicts a `` bicycle revolution '' within 20 years . In U.S , 300,000 e-bikes sold 20 years ; 22 million in the China . Both sides acknowledge animosity between e-bikers and traditional bicyclists .