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“Straßenfeger” S4 E – No better way to ride in the city

The S4 E “Straßenfeger” is the pinnacle of modern technology parred with top notch craftsmanship and german engineering ingenuity in a sporty design. The patented Electrolyte Electric drive system made almost entirely from CNC machined parts takes the place of a usual fork and includes everything you desire from a modern e-bike. The elegant and compact drive unit allows a range of up to 100km and exhilarating driving pleasure at the push of a button. Even with an empty battery or if you choose to leave it at home, Electrolyte Zero-Resistance technology separates the Motor and the wheel letting you pedal the only 16kg bike, (14 kg without battery) and therefore one of the lightest on the market, with ease and without wasting energy.
Our frame is handcrafted from aerospace grade 7000 series aluminium and then sanded allowing for an extremely long lasting, robust, stiff and lightweight construction. You don’t only see the difference in quality, you feel it with every push into the pedal.
A high-end gates Carbon Drive Belt guarantees thousands of Kilometers of fun without maintenance, without dirt and without noise.
Puristic, light and fun without limits is what sets this city bike apart from the rest and lets you reach your destination without sweating and in style.
The 2kg Battery is fully removable and due to fast charing capability a 80% charge is reached in just 80minutes.

The S4 E has a limited production run of only 120 Units per Year.

Technical Specifications:

Patented fully integrated CNC Machined Drivesystem
Handwelded Aluminium frame from EN-AW7020 – T6. High strength and ultra lightweight with sanded welding seems for a super clean look.
Paintjob: Ultra high strength powder coating in classic race car livery or freely selectable to your liking.
Motor: custom 250W, Pedal assist up to 25km/h
Battery: custom 36V 313Wh Li-ion
Charger: Li-ion fast charger, charge time to 100% 2.25hrs
Zero Resistance technology for super easy riding without motor power
Supernova LED Lighting system front and rear
Gates CarbonDrive Belt for low maintenance and high lifespan in all conditions
Syntace P6 Seatpost, Syntace Force Stem, Syntace Stratos / Duraflite Handlebar
Hydraulic Magura Disc Brake
203mm Custom Brake disc for extreme stopping power
2-speed Sturmey Archer S2C Kickshift rear hub with kickback brake
28” Andra Ryde Rims with Sapim Spokes
Sadle: Selle San Marco Regal Black Leather

Range: up to 100km
Total weight: 16kg (incl. Battery)

Your Advantage

  • dream bike with your custom options
  • fine-tuned riding position
  • custom colour scheme possible
  • free shipping for online orders within Germany
  • delivery straight to your door
  • completely assembled and securely packaged
  • 30 days return policy for bikes with standard equipment and standard colour
  • 10 year warranty on frame and material or manufacturing defects
  • 2 year warranty on battery subject to proper use
  • free initial inspection within the first year of purchase
  • servicing and repairs straight from the manufaturer

Your Configuration

Price inc. sales tax


Your Equipment

Shop safely

You can return any standard bike in standard colours to us within 30 days. All our frames have a 10 year warranty against defects in materials and workmanship. Our batteries have a 2 year limited warranty, subject to proper handling. Please refer to our terms and conditions.


You don’t want to order directly or you have questions or want to test-ride one of the bikes?

Of course you can give us a call +49 (0) 8093 905-8280 or send us an email: