LiveWire (LVWR) has begun production of its newest electrical motorcycle models, the S4 Honcho Trail and S4 Honcho Street, the company said Tuesday.

Production is already underway and the first units are expected to arrive at retail outlets in the summer, with broader availability expanding throughout the year, the company said.

Both models are 125cc-equivalent mini-motos with top speeds of 59 miles per hour and weighing 250 pounds including batteries, the company said.

The Trail and Honcho Street start at $4,999 and $5,499, respectively, the company said.

Shares of the company were up over 4% in recent premarket activity.