(TrendHunter.com) Rad Power Bikes, the China-based electric bike manufacturer with a large presence across North America, unveiled the ‘RadExpand 5,' its fifth-generation foldable e-bike. The RadExpand 5... (TrendHunter.com) Rad Power Bikes, the China-based electric bike manufacturer with a large presence across North America, unveiled the ‘RadExpand 5,' its fifth-generation foldable e-bike. The RadExpand 5...