Ultralight Electric Bike Releases
The T Line Electric is Brompton's Lightest Foldable Bike to Date
Colin Smith — January 18, 2026Brompton’s T Line Electric is the brand’s lightest electric folding bicycle, built with an all‑titanium frame and carbon components, offered with Brompton’s proprietary e‑Motiq drive system and a detachable 345 Wh battery that Brompton cites as delivering up to 90 km of range under ideal conditions.
The model’s published weights are about 11.2 kg without the battery and 14.1 kg with the battery, positioning it for users who require frequent carrying or multimodal commutes while retaining electric assistance; available gearing options include single‑speed or a 4‑speed setup and the bike features Brompton’s folding geometry and premium finishing. Brompton lists the T Line as a premium product with a manufacturer suggested retail price in the upper segment of the market, and the specification set emphasizes portability, refined materials, and the integrated e‑Motiq control system for adaptive assistance and battery management. For procurement and fleet evaluation, verify real‑world range under expected rider and route loads, confirm local dealer support and spare parts availability, and review warranty and service terms to assess total cost of ownership before purchase.