Rivian Mobility Spinoff Readies $4,500 E-Bike as First Product

Also, the micromobility startup spun out of Rivian Automotive Inc., has unveiled its first consumer product: an electric bike that will cost up to $4,500.

Called TM-B, the class 3 e-bike, which don’t require a driver’s license, will launch in spring 2026, offering riders pedal assistance up to 28 miles per hour and, where allowed, a throttle reaching 20 mph. The $4,500 Launch and Performance editions share features, while a cheaper standard model, priced below $4,000, will follow later next year.