e-B-9 NH Mk II
The evolution of the B-9 NH Urban Stealth — transformed into a lightweight electric bicycle while preserving its original design language.
Overview
The e-B-9 NH Mk II is the electric evolution of the original B-9 NH Urban Stealth. The Mk II develops the original B-9 NH concept into a lightweight electric bicycle while retaining its distinctive geometry, minimal appearance and riding character.
Electric assistance is provided by the Zehus HALOS all-in-one rear hub system, allowing the original frame and its clean visual identity to remain essentially unchanged.
The first completed e-B-9 NH Mk II is based on the camouflage B-9 NH bicycle. A second electric version using the original matte black bicycle is planned.
Electric Integration
The Zehus HALOS system integrates the motor, battery and control electronics within the rear hub, eliminating the need for an external battery or conventional frame-mounted drive unit.
Its compact architecture fits naturally with the original B-9 NH concept, retaining the clean carbon frame, Gates Carbon Drive and minimalist appearance.
The Mk II realises an electric version of the B-9 NH that had already been considered during the earlier development of the project.
Features
Integrated
- Motor, battery and control electronics integrated within the rear hub.
- No external battery or frame-mounted drive unit.
- Clean integration preserving the original B-9 NH design.
Lightweight
- Complete bicycle weight of 12.6 kg with pedals.
- Original carbon frame, fork, handlebar and saddle retained.
- Minimal weight increase while adding a complete electric drive system.
Distinctive
- Original faceted geometry and stealth-inspired design language retained.
- Single-speed Gates Carbon Drive.
- Electric assistance integrated without changing the fundamental character of the bicycle.
Gallery
Development and Future
The first e-B-9 NH Mk II has been completed using the camouflage B-9 NH and is fully rideable.
A second electric version based on the original matte black B-9 NH is planned.
The Mk II also opens a new direction for the B-9 NH concept, combining its original design philosophy with contemporary lightweight electric drive technology.