Portland’s Biketown rental service is poised for a dramatic expansion and overhaul in September that will include an all-electric-assist fleet from ride hailing giant Lyft, city officials announced.

The changes mean Biketown isn’t going anywhere through the summer of 2025 at least, and city leaders hope to eventually expand service to as many as 3,000 bikes. Users will be able to rent a bike through a newly configured Biketown app or through Lyft’s smartphone app.

Portland transportation officials announced they have a five-year contract with Lyft to operate the bike rental program, which first started in the city in 2016. Lyft owns Motivate, the bike operations company that already runs the existing system. Simultaneously, the city said it agreed to extend its main sponsorship agreement with Nike for another four years, until 2025.

The sponsorship is $2 million per year.

The contracts go before City Council for approval July 22.

Come September, Portlanders who are out and about will see 1,500 e-assist Biketown bikes throughout the city, an increase from the existing 1,000 vehicle fleet. The new agreement also more than doubles the service area where users can park the bikes at authorized docks for free. The expansion includes vast swaths of the city from just west of Mount Tabor east to Powellhurst-Gilbert. Portions of North Portland are also part of the expanded territory, which brings service to 40 square miles of the city, up from 19 square miles.

City leaders are banking on the e-assist bikes, which can hit up to 20 miles per hour, as being a big draw. The all-electric fleet is more than the city asked for in its contract solicitation last year, which called for at least half of any fleet to be e-assist.

“This is a great day for transportation in Portland,” Chris Warner, the city transportation director said in a statement. “More people are going to be able to ride Biketown and thanks to the new fleet of e-bikes, we will dramatically extend the system’s range. Nike has been a fantastic partner and we’re extremely grateful for their continued dedication to bringing sustainable transportation to Portland.”

According to transportation officials, the new bikes are 10 pounds heavier, weighing in at 75 pounds. “But in reality, when the pedal-assist kicks in and you’re flying up Mount Tabor, the new e-bikes will be light as a feather,” city spokesman Dylan Rivera said in an email. “Asking how much a bike-share bike weighs are like asking how fast can you ride at Sunday Parkways: That’s not the point.”

The bikes will go roughly 28 to 32 miles on a charge, Rivera said.

The city doesn’t bear any of the operations charge, which fall to Nike and Lyft. Nike is chipping in $2 million per year. It wasn’t immediately clear what Lyft’s share included, beyond its bikes and hardware. User fees also help fund the system.

Portland pays for the adaptive use bike system through Biketown, which will continue and is a separate agreement between the city and Albertina Kerr, which provides services to people with intellectual and physical disabilities.

The new system will have the same cost for an annual membership but higher fees for single rides. An annual membership for the rental program remains $99, which covers 90 minutes per ride plus a 10-cent per-minute fee beyond that officials said. Annual members will be rolled over into the new system.

Pay as you go users will be charged $1 to unlock the bike then 20 cents per minute, which is similar to prices for e-scooters.

The city’s deal for low-income residents remains $5 per month and 5 cents per minute, Rivera said.

Riders will still be charged $10 for parking bikes outside the newly enlarged service area, or $1 for parking at non-Biketown racks in the service area.