街边，旧车还在卖……北京二手电动车黑市隐患重重！

Core Viewpoint - The article highlights the growing market for second-hand electric bicycles in Beijing, revealing safety hazards and legal risks associated with these transactions, particularly in informal street sales and online platforms [1][22]. Group 1: Market Demand and Trends - There is a significant demand for second-hand electric bicycles, driven by consumers looking for affordable alternatives to new models, which can cost several thousand yuan [3][4]. - Many buyers, like Ms. Li, are hesitant to spend on new bikes due to high prices and are turning to second-hand options, despite concerns about vehicle condition and legality [3][4]. - The presence of "middlemen" in the market is notable, as they facilitate the buying and selling of second-hand bicycles, often without proper oversight [17][19]. Group 2: Safety and Legal Risks - The lack of regulation in the second-hand electric bicycle market raises safety concerns, as many bikes may have been modified or are not compliant with current safety standards [22][23]. - Key components such as batteries and motors are difficult to assess for quality, leading to potential hazards for buyers [22][23]. - Legal risks are significant for both sellers and buyers, particularly regarding liability in the event of accidents involving modified or unregistered bicycles [23][24]. Group 3: Recycling and Environmental Concerns - The article discusses the challenges of recycling lithium batteries from electric bicycles, with current initiatives in place but facing obstacles such as consumer reluctance to return old bikes [24][25]. - There are efforts by local authorities to establish recycling programs, but illegal sales and modifications of batteries complicate the situation [24][25].