Rivian's spin-off company, Also, has developed the TM-B, a highly versatile and innovative e-bike platform that is modular, customizable, and designed for various riding conditions, including cargo, street, and off-road.

The TM-B features a dual removable USB-C battery system with ranges up to 60 miles for the standard and 100 miles for the larger battery, and it can reach speeds of up to 20 MPH.

Pre-orders for the TM-B are now open, with deliveries expected in spring 2026, and it will be available through Rivian's online platform and retail stores in the U.S.

The bike incorporates advanced software, including over-the-air updates, GPS tracking, seamless phone pairing, and security features like full 'bricking' to prevent theft, emphasizing its connected and smart platform.

Design principles focus on approachability, safety, and integration, with features like integrated turn signals, a theft security system, a custom navigation touchscreen, and options for batteries with ranges up to 100 miles.

A 5-inch touchscreen called 'Portal' provides navigation, music, and calls, while security features include automatic locking and tamper alerts, enhancing safety and connectivity.

The TM-B includes a security system called Connect+ with a subscription option, potentially offering advanced navigation and additional features.

A digital display shows speed and navigation, and the removable battery can also serve as a portable power bank, adding to its versatility.

The bike is equipped with advanced security features such as GPS tracking, LTE connectivity, remote disabling, automatic locking, and tamper alerts to prevent theft.

Power is supplied by a fast-charging removable battery, with electronic disabling and wheel lockout when turned off, ensuring high security in public parking.

The modular design allows customization with options like cargo racks, LED lighting, and compatibility with the Alpha Wave helmet, which includes an audio system and impact dissipation technology.

The TM-B is designed to carry over 400 pounds of cargo, is compact enough for bike lanes, and suitable for dense urban environments, supporting urban mobility and delivery needs.