近段时间，电动自行车因为超重导致无法上牌或过户的情况有增多迹象，白云区黄石东上牌点的工作人员介绍，超重的电动自行车多数跟加装、改装电池有关。

Recently, there have been increasing signs of electric bicycles being unable to be registered or transferred due to overweight. The staff at the Huangshidong registration point in Baiyun District explained that the majority of overweight electric bicycles are related to the installation or modification of batteries.