Chain skips and derailleur adjustments shouldn’t dominate your maintenance schedule, yet the TM-B also eliminates these frustrations. This Rivian spinoff’s debut e-bike features a “pedal-by-wire” system—no mechanical connection between your pedaling and the rear wheel.
Instead, pedaling generates power that flows to the battery, while a separate motor drives the wheel, all governed by software. Think Tesla’s drive-by-wire steering applied to cycling.
The “DreamRide” system delivers 180 Nm of torque through perfect “gear changes” every time, since there’s no actual derailleur to misalign. Regenerative braking captures energy during stops, extending the 60-100 mile range depending on your battery choice. Every pedal stroke and brake application feeds back into the system, maximizing efficiency like your favorite EV.
Modular Design Adapts to Daily Reality
One bike transforms between solo commuting and cargo hauling via touchscreen controls.
Need to haul groceries after your morning commute? The TM-B’s modular top frame swaps between a solo seat, bench seating, or cargo rack—all tool-free through digital controls on the 5-inch touchscreen.
The single-latch system handles up to 77 pounds of payload, turning your commuter into a utility vehicle faster than ordering an Uber. This isn’t just marketing speak—the digital interface actually controls the physical locking mechanism.
The 120mm suspension handles both smooth pavement and rougher terrain, while software adapts between Class 1, 2, and 3 e-bike regulations based on your selection. Maximum speeds hit 20 mph on throttle alone or 28 mph with pedal assist.
Premium Pricing Targets Early Adopters
Launch Edition costs $4,500, with a sub-$4,000 base model arriving later in 2026.
Also positions the TM-B squarely in premium territory, competing with high-end brands rather than mass-market alternatives. The Launch and Performance editions debut spring 2026 at $4,500, while the base model launches later that year under $4,000.
For urban riders tired of compromise—wanting both speed and cargo capacity, both comfort and efficiency—the virtual drivetrain represents something genuinely new in the e-bike market. Whether that innovation justifies the premium depends on how much you value never adjusting gears again.
