Focus on your plans, not on your bike. The SD3 URBAN is ultra-low in maintenance and is always at your disposal when you need it.

Its reliability and durability make the SD3 the ideal vehicle for active urbanites. Because you want to have 100% confidence in your mobility

Bosch Performance Motor

Virtually noiseless drive with minimal pedalling resistance

No chain

The GATES CDX carbon belt lasts 10 times longer. It is oil-free and clean, maintenance-free and whisper-quiet.

Stepless transmission

Variable control instead of switching - with up to 380 % transmission range. Fully encapsulated, efficient and 100% maintenance-free.

Top components

Supernova lighting system, top-quality hydraulic disc brakes and many other highlights


Quiet and longer-lasting - Specially adapted to the performance requirements of an e-bike, Gates engineers have developed a new, remarkably durable and maintenance-free system. It's 20% lighter and lasts up to 10 times longer than a well-maintained steel chain.


The SD3's Bosch PowerTube is a modern lithium-ion battery with an integrated battery management system and 500 Wh energy capacity. As an Intube battery, it disappears discreetly in the frame of the SD3. It can be easily installed and removed and, optionally, also charged directly on the bike.

Your gear box

Today, enviolo from Fallbrook Technologies is set to become the standard in continuously variable gears for bicycles and e-bikes. With a wide transmission ratio of up to 380%, the enviolo TR offers ideal comfort for every driving style and terrain.

In line with HNF-Nicolai’s philosophy, the enviolo is entirely maintenance-free. Unlike conventional gear hubs, it can also be shifted under load or at standstill.

available with two lighting systems

The exceptionally compact design of the Supernova MINI 2 features the unique Terralux 3 lens. The brightness is a total 235 lumens.

The built-in overvoltage protection combined with a soft start upon switch-on ensures a long lifespan for the MINI 2. Thanks to sophisticated light guiding, the Terraflux lens directs 90 % of the light to where it is needed most: the road.

The M99 MINI Pro 25 is the first approved headlight with high beam and low beam to comply with the new European Road Traffic Licensing Regulations. A high beam is essential, especially in off-road use, because it significantly improves the illumination of the trail. As it illuminates the entire environment, safety is massively increased. So after a sporty night ride, the integrated low beam can ease your drive home – without dazzling oncoming traffic.

Available with the following command centers

We install the Bosch Purion compact display as standard on the SD3. It combines remote control and display element in one housing. The position on the left handlebar grip is less susceptible to damage in the event of a fall, and it also leaves space in the centre of the handlebar for attaching a smartphone. Two large, multi-functional plus and minus buttons call up essential trip data such as total mileage, range and distance. The standard display provides information on the current speed, battery level and support level.

The Intuvia, optionally available for the SD3, offers simple, intuitive and safe operation on the separate control unit.

Not only is it easy to switch between the five riding modes plus push assist, but also to call up information such as speed, charging status, distance and much more. In addition, the gearshift recommendation shows the optimal moment to shift into another gear using an arrow display.

BOSCH SmartphoneHub, available as an option, turns your pedelec into a fully networked e-bike to be part of your digital life: Combined with your smartphone and the COBI.Bike app, SmartphoneHub turns into an intelligent control centre that navigates, records activities and connects with other services and apps. But even without a smartphone, the integrated display shows all essential ride parameters. This gives you maximum flexibility at all times – no matter where your route takes you.

Small, well-connected and trend-setting: Kiox gives sporty, ambitious eBikers access to the digital world via the eBike Connect smartphone app; it even navigates you to your destination. With the robust colour display, you always have an eye on your route and your riding data – and with the separate control unit, you have full control of your e-bike. Kiox records your trip and sends all relevant data, and, using your Bluetooth-connected smartphone, sends it to the eBike Connect online portal. Moreover, you can optimize your workout by connecting it to a heart rate monitor via Bluetooth. This makes Kiox your perfect companion for sporty tours and the Connected Biking adventure.

The optional Nyon is connected to the smartphone via the eBike Connect app and exchanges data about routes and activities. As an intelligent guide, the colour display supports you when exploring previously unknown places and, with fitness data, acts as a personal trainer. The all-in-one on-board computer can be operated intuitively via the touchscreen; while driving, it is controlled via the separate control unit. Whether for extended tours or short everyday rides: the robust and perfectly viewable display is ideally equipped for all requirements and all weather conditions.

Uncompromising quality

A timeless and reduced design has always been at the heart of our robust and high-quality bikes. Today, HNF stands as a symbol for the pioneering achievements that drive our advanced drivetrain concept: We preferably combine the powerful and indestructible Bosch motors with a durable belt drive and a continuously variable transmission. This combination, which we first introduced in 2015 with the XD series, is today considered the gold standard for maintenance-free operation across all manufacturers. Since 2022, we have also been adding high-quality chain drives and gears to our product range, enabling us to serve broader market segments.


MTB 28'' S / M (up to 175cm) or L/XL (from 175cm)

Bosch Performance Line

ZOOM CH860 60mm

battery pack
Bosch PowerTube 500Wh

Bosch Purion Optional: Kiox, SmartphoneHub, Intuvia, Nyon

Power transmission
Gates Carbon Drive (carbon belt)

Front pulley
Gates CDX 55T for Bosch

Gates Carbon Drive Belt 125T

Rear pulley
Gates CDX 22T

Hydraulic Disc Brake FW / RW Magura MT4 180mm

gear box
enviolo TR

Gear lever

Satori H-Bar Noir

Ergotec Swell RE 100mm, angle adjustable

Selle Royal Essenza Athletic

Seat post
Satori Trident 31.6 / Ergotec Atar 31,6

Miranda Delta 170

VP 831P

Hebie Alumee 52mm / Racktime for HNF, 25 kg

Supernova MINI 2

Continental Contact Safety 47x622

max. speed (pedelec)
up to 25 km/h

gray | white

approx. 25.8 kg | 150 kg

from € 4,415.-

Subject to technical changes.
All information is subject to change without notice.