The hilly streets of Seattle and San Francisco are often intimidating to would-be cyclists. LimeBike hopes to help them get over the hump with new additions to its fleet.

On Monday, the dockless bike sharing company announced it will roll out electric-assist bicycles in Seattle, several California cities, Scottsdale, Ariz., and Miami, Fla. LimeBike announced the program, called Lime-E, at the Consumer Electronics Show in Las Vegas.

The e-bikes cost $1 to unlock and one additional dollar for every 10 minutes of ride time. That's slightly more than analog LimeBikes, which cost a flat $1 for every 30 minutes of ride time. LimeBike is planning to deploy the e-bikes the third week of January.

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