Palo Alto, Calif. - It looks like a bike. It rides like a bike, mostly.

But a new electric two-wheeler from a Rivian spin-off packs more than a few features you would expect from a full-size electric car instead.

The TM-B e-bike, built by a team that spun out of the electric truck maker, recharges its battery when you brake. A five-inch touch screen it calls the “Portal” offers music controls and navigational cues. When the $4,000-plus e-bike starts shipping next year, your phone will act as a key, unlocking the bike and priming it for a ride when you - or another designated rider - walk up to it.

It’s pretty flexible, too: You can swap out the standard bike seat for a Vespa-style bench that seats two, or a utility frame that can accommodate a few bags of groceries.And most notably, it

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