Also (Rivian spinoff) debuts TM‑B e‑bike with “DreamRide” virtual drivetrain; TM‑Q pedal‑assist quads teased with Amazon

Also, the micromobility startup spun out of Rivian, unveiled its first products: the TM‑B e‑bike and previews of two pedal‑assist quads called TM‑Q. The TM‑B targets commuting, trail rides and kid/cargo hauling with a modular design and a tech‑forward, software‑defined drivetrain.

TM‑B e‑bike: key features

• “DreamRide” virtual drivetrain: Pedaling powers a generator that feeds the battery instead of a mechanical chain to the wheel, enabling software‑defined pedaling with auto and manual “gear” modes.
• Batteries (USB‑C removable): Two sizes—up to 60 miles (standard) or 100 miles (large). Doubles as a large external power bank off the bike.
• Speed: Throttle up to 20 mph; up to 28 mph with pedal assist (local laws apply). Regen braking helps top up the pack.
• Modularity: One frame size designed for multiple body types via different seat sizes/styles. Tool‑less seat swaps use a latch controlled from the on‑bike display.
• Cargo/bench options: Rear rack or bench rated up to 35 kg for kids or payloads; envisioned for heavy haul scenarios.
• 5‑inch “Portal” touchscreen: Navigation, music playback, and calling via the Also app; customizable handlebar controls.
• Security: Built‑in system auto‑locks the frame and rear wheel when you walk away.
• Failsafe: A “limp mode” lets pedaling generate enough power to reach a charger if the battery is depleted.

Models, pricing and availability

• TM‑B Limited Launch Edition — $4,500, up to 100‑mile range, standard + sport ride modes, transparent purple accents. Ships spring 2026. Pre‑orders open now.
• TM‑B Performance — $4,500, similar specs with alternate colorway. First half of 2026.
• TM‑B Base — Under $4,000, up to 60‑mile range, standard modes. Later in 2026.
• All bikes will be on display in Rivian showrooms later this year; Performance/Base can be reserved with a $50 deposit.

TM‑Q pedal‑assist quads (preview)

• Family TM‑Q: Compact quad intended as a safe, bike‑lane‑friendly car alternative that can still haul significant loads.
• Commercial TM‑Q: Larger quad geared for deliveries; Amazon partnership to develop Prime‑branded fleets.
• Timing/pricing: Not yet announced.

Why it matters

• Ride feel by software: The virtual drivetrain allows adaptive assistance profiles and could reduce mechanical wear compared to chains/gearing.
• Urban logistics shift: Bike‑lane‑sized quads may ease congestion and emissions for last‑mile delivery.
• Auto DNA in micromobility: Rivian’s design sensibility shows in the Portal display, app integration, and security features.

Consider before buying

• Local regulations: Check e‑bike class rules (throttle limits, speed caps) and whether quads are permitted in bike lanes in your city.
• Service network: Confirm warranty coverage and availability of batteries, drivetrains and Portal replacements.
• Cargo needs: Verify child seat compatibility, rack ratings and real‑world payload requirements.

Learn more:
Rivian ·
Launch coverage and hands‑on details

Discussion: Would you trade a traditional chain for software‑defined pedaling and a built‑in nav/security stack at $4,500—or stick with a simpler setup?