Rivian, best known for its electric trucks and SUVs, just revealed something completely unexpected – an electric bike that looks and works unlike anything currently on the road. The company’s new micromobility spinoff, Also, has introduced the TM-B e-bike, alongside a TM-Q electric quad and the futuristic Alpha Wave helmet, which it says represents a leap in rider safety and smart connectivity.
The TM-B, short for “Transcendent Mobility – Bike,” is an all-electric two-wheeler that blends cutting-edge design with Rivian’s signature overengineering. According to The Verge, the TM-B doesn’t use a traditional chain or gears at all. Instead, it features an in-house “DreamRide” pedal-by-wire system where pedaling generates electricity to recharge the battery. A separate motor powers the rear wheel using software-controlled traction – think of it as the EV equivalent of drive-by-wire.
The e-bike runs on 24 x 2.6-inch wheels, comes with built-in lighting at the front and back, and is driven by a powerful electric motor capable of producing a staggering 180Nm of torque. That’s more than enough to climb hills, accelerate hard, and carry heavy loads with ease. It has a pedal-assisted top speed of 28 mph (45 kph) and includes a throttle option for up to 20 mph, depending on local laws.
Powering all this is a removable battery pack that comes in two sizes – 538Wh or 808Wh – with a maximum range of around 100 miles. Charging happens via USB-C at up to 240W, which means a full recharge in as little as two hours and twenty minutes. The battery doubles as a power bank too, complete with USB-C ports for charging gadgets.
One of the TM-B’s standout features is its modular frame. You can also reconfigure it without tools into multiple setups – a cargo hauler, child carrier, or even a two-seater cruiser with a bench seat. An inverted front fork and air suspension help smooth out rough roads, while the adjustable seat post unlocks with a swipe on the bike’s circular 5-inch touchscreen console.
Security is also a big focus. The TM-B uses proximity detection to automatically lock and unlock when the rider approaches or leaves. The system secures the frame, rear wheel, and battery, and includes real-time tamper alerts and GPS tracking.
A limited “Launch Edition” priced at $4,500 is available for preorder now, with deliveries expected in spring 2026. A slightly less expensive $4,000 base model will follow later that year.
If Rivian’s TM-B performs as boldly as it looks, the company might not just be reinventing e-bikes — it could be redefining what personal electric transport looks like altogether.
