HP Velotechnik

It's the Eurobike trade fair in Frankfurt, Germany, later this month, and local firm HP Velotechnik is riding in hot with a recumbent electric trike called the Delta tx that was developed to take "a senior tricycle to the next level."

In addition to a new off-road model, German trike manufacturer HP Velotechnik plans to launch a new dual-battery option on its entire e-trike line next month. Double the battery will mean double the range.