Two months after Lime – a dockless bike sharing company – brought their green and yellow bikes to Arlington, the company expanded the fleet to include new e-bikes called Lime-E over Labor Day weekend.

According to a press release from the company, these new e-bikes are pedal assist and can reach a maximum speed of 14.8 mph.

The bikes cost $1 to unlock as well as an additional 15 cents per minute.

"Lime is excited to expand our Boston metro dock-free bike fleet to include pedal-assist e-bikes. By rolling out Lime-E, more people can now hop on bikeshare," said Scott Mullen, Lime Director of Expansion, New England, in the press release. "Communities around the Boston region will now have a boosted ability to ride affordable, green transportation options."

According to data provided to the town of Arlington by Lime, there is heavy use of the traditional dockless Lime bikes on the Minuteman Bikeway, which runs through Arlington, Lexington and Bedford.

Only Arlington and Bedford participate in the dockless bike share program at this time.

Chapter 90 Section 1B of the Massachusetts General Laws states that "Motorized bicycles may be operated on bicycle lanes adjacent to the various ways, but shall be excluded from off-street recreational bicycle paths."

This includes the Minuteman Bikeway.

Captain Richard Flynn of the Arlington Police Department told the Advocate that e-bikes are allowed on the Minuteman Bikeway in Arlington but could not speak for other communities.

Representatives from the Lexington and Bedford Police Departments were not available for comment at the time of publication.

Chapter 90 Section 1B also outlines that no person under the age of 16 or without a valid driver's license or learner's permit can operate a motorized bicycle, or e-bike. Riders are also required, by law, to wear a helmet.

Fines for violating these rules come to no more than $25 for the first offense, no less than $25 and no more than $50 for the second offense and no less than $50 and no more than $100 for subsequent offenses.