S-Electro Supersonic

  • S-Electro Supersonic Silverback E-Bike
  • S-Electro Supersonic Road E-Bike
  • Alloy Road E-Bike
  • S-Electro Supersonic Silverback E-Bike


S-Electro Supersonic

6.01E+13 Preorder Product

Price incl. VAT excl. Local Import Taxes & Shipping Costs.

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Hands of Hope

Your Purchase does good, gives back and makes a lasting impact. 5% of profits of all products is donated to the Joyce Meyer Hands of Hope Initiative. No cost to you.

Joyce Meyer Ministries - (https://joycemeyer.org/)

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With Your Purchase of any Helmet, you contribute to placing more Homes on Heads. Make a lasting impact to those who are homeless, or who may have lost their homes due to any national disaster. 5% of profits of helmets gets donated to the Joyce Meyer Ministries who will help us with this Initiative. No cost to you.

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SPEEDLAB ships from Monday to Friday with the exception of public holidays. We ship complete orders only, i.e. the dispatch usually takes place as soon as all ordered items are ready for dispatch. Please contact the SPEEDLAB service team if you wish a partial delivery.


Depending on destination country, package size, volume and weight, SPEEDLAB ships with the carriers German Post, DHL, German parcel service, DPD, USP. Deliveries of bulky goods, for example complete bicycles, will be handled by selected forwarding companies.

For return shipments SPEEDLAB cooperates with German Post, DHL and DPD. Large bulky goods like bicycles will be picked up by a forwarding company.

In Germany and most European countries the are shipped with DHL, Hermes, DPD, UPS, German Post.




  • Germany 5,99 Euro DHL / DPD / Hermes / German post
  • Rest of Europe: 13,99 Euro (DHL, DPD, Hermes)
  • Rest of world: 29,99 Euro DHL
  • Cash on Delivery + 4,9 €


For all items marked with this symbol, which are ordered on business days from Monday to Friday by 3 p.m. (CET), we offer the DHL Express shipping option or UPS for selected delivery countries. The DHL Express&UPS option is subject to an additional surcharge. It can be selected during the ordering process, provided that all items in the shopping cart offer the Express option. In addition the DHL Express option must be available for the selected delivery adress.

An order within the EU usually arrives the following business day. Depending on the postal code of the delivery address, longer parcel delivery times may occur.


  • Germany 15 Euro (DHL, UPS, TNT)
  • Rest of Europe – 49 EURO (DHL, UPS, TNT )
  • Rest of world – on request

In-stock items will be shipped within Germany in 1-2 working days, within Europe and worldwide in 1-3 working days. Unfortunately the delivery at a certain date given by you is not possible due to logistic reasons.

Should the ordered item not be in stock, the delivery time is extended analogue to the delivery in our warehouse. Information regarding the availability can be obtained at +49-7022-9-777-818 or info@speedlab.shop

Please note: The ordered goods may be subject to a partial delivery.

Import Taxes, Customs Duties and Fees / National VAT

The indicated prices including VAT. In addition to the calculated SPEEDLAB shipping costs customers not living in the EU have to pay the national VAT and duty in their country for the imported goods.

Transport Damage

If you receive a damaged shipment please refuse the receipt if possible. Anyway, please get in touch with the Bike24 service team by e-mail or phone as soon as possible. We will be happy to solve the issue.


The SPEEDLAB team will do its best to fulfill your change requests.

The wish to cancel must be declared within 14 days after receipt of the goods. The return must take place within 14 days after the declaration of the cancellation.

Before the actual dispatch of your order, it can still be canceled. Please send us your request as soon as possible using the contact form or call us by phone. Should the payment have been charged already, it will be refunded in a timely manner.

Pack everything you want to return to SPEEDLAB carefully and include your order number. Remove the old shipping label and attach the return label to the package. You can return the package at DHL and Hermes stations. For all other countries: Please contact us with your return request and our customer service will arrange the process. Usually, SPEEDLAB covers the return costs.

A return will be processed at SPEEDLAB within a few working days. Once your request has been successfully processed it will be confirmed by e-mail. A possibly necessary refund will be processed directly afterwards.

Alloy road-devouring eBike.

Built around an impressively finished alloy frame, the S-Electro Supersonic is designed for improved range on road. Drop handlebars, narrow tyres, a full Shimano 105 2x11 groupset including hydraulic disc brakes, along with a well integrated FSA electric drive system, you'd be forgiven to think that this is a normal proper roadbike. The Supersonic takes day to day functionality and performance, and presents you with a bike that is for someone that wants to do the miles, get a proper workout, but does not yet have the legs to do long distances under their own power. Supersonic is a great bridge between ability and fitness in a sleek package. Increased fork offset means that the Supersonic is more stable at high speeds.

Groundbreaking FSA Electric drive assist system

Supersonic is fitted with the brand new FSA System HM 1.0 250W hub motor, matched to an FSA System HM 1.0 250Wh battery with a top-tube integrated on-bike control unit. With five assistance settings, an integrated torque sensor and two speed sensors, the system easily adapt to changing riding styles and conditions. When disengaged, the system has very little drag, for a natural free pedaling motion, and a low q-factor, due to the normal crankset, makes it feel like a normal bicycle. There is also a powerful app that you can load on your smartphone that works with the system.


Hydro formed alloy frame with internal battery

Supersonic features a proprietary double butted hydro formed alloy frame with smooth welds. Butting means that the tubes are thinner in the middle, but have thicker sidewalls at the junctions. This keeps weight down and ensures enough structural integrity for an electric assisted bike. Hydro forming is the process of forcing the thin wall alloy tubes into negative mold cavities, with internally pressurized water and or oil. This process makes for stronger tubes with complex shapes.



















  1. FSA hub drive motor means lower Crank Q-Factor and the ability to run a 2x crankset with matching drivetrain components
  2. Proportionate reach and stack increase per size to keep the ride quality the same for all sizes.
  3. Tyre clearance for up to 700C x 32C tyres - higher volume road tyres for improved grip and comfort.
  4. Full internal cable routing from control part to component.
  5. Smooth shifting, quality, Shimano 105 2x11 speed groupset
  6. Hydraulic disc brakes offers excellent all weather braking and great modulation.




S-Electro Supersonic has Endurance focused geometry for all day riding comfort. The increased fork offset increases stability at high speeds. Short chain stays for improved air flow transition between frame and rear wheel.



Supersonic conceals a 250Wh battery in the sleek alloy down tube. The battery can be charged on the frame, but is also easily removable to charge away from the bike, or to replace. Additionally, the system can take a secondary 250Wh expansion battery in the seat tube bottle mounts, to double the range on the road.



A comfort improving rigid carbon fork is compatible with 700C x 32C front wheels. This fork is aerodynamically optimised, offering improved airflow. Compatible with 160mm flat mount disc brakes, the cable is routed internally, further enhancing looks and aero efficiency.



A modern roadbike at heart, the Supersonic is designed to accommodate up to 700C x 32C wheels and tyres.



The 700C fork with a M12 x 100mm thru axle, with increased offset increases stability at high speeds.



Supersonic is fitted with a high quality, reliable Shimano 105 2 x 11 speed groupset and superior quality Surface alloy wheels.



The LED colour changing top tube button makes changing modes intuitive and quick. And the colour means that you can see it in your peripheral vision, without having to look directly at it, meaning you can keep your eyes on the road.


MotorFSA System HM 1.0 250W Rear Hub-Motor
BatteryFSA System HM 1.0 250Wh Battery
ChargerFSA System HM 1.0 Charger
SwitchFSA System HM 1.0 Smart-LED Button
CranksetShimano 105 50-34T Chainwheel
CassetteShimano 105 11-30T Cassette
Rear DerailleurShimano 105 11-Speed Rear Derailleur DA 34T
Front DerailleurShimano 105 11-Speed Front Derailleur BO 53T.
ShiftersShimano 105 Hydraulic Brake and Shifter w/ Caliper
ChainShimano CN-HG601-11 11-Speed Chain w/End Pin
HeadsetFSA Fully integrated cable routing headset, for 55,8mm OD headtube, for 1-1/8" to 1-1/2" tapered fork.
Fork700C Carbon Fork, M12x100mm, Full Internal Cable Routing in Steerer
HubsFront Hub: Alloy Sealed Bearings, 100x12, 6 Bolt, 32H, Rear Hub: FSA System HM 1.0, 250Wh Hub Motor
RimsAlexrims ATD500, 700C, 19mm Internal Width and 24mm Deep
Tyres700x32c Vittoria Zaffiro
SeatpostSurface Aluminium, Black L: 350 for size XXS, L: 350 for size XS, L: 350 for size S, L: 350 for size M, L: 350 for size L, L: 350 for size XL, L: 350 for size XXL
SaddleSurface, Race, Cro-Mo Rails
StemFSA ACR Chromoly Stem, 31.8mm, Rise -6°; L: 80 for size XXS, L: 90 for size XS, L: 90 for size S, L: 100 for size M, L: 100 for size L, L: 110 for size XL, L: 120 for size XXL
SeatclampSurface Alloy w/Steel Bolt
GripsVelo Handlebar Wrap, Seude Black, Plug with Expander Bolt
Brake setIncluded in Brakeset or Shifter, Rotors: Shimano RT66 160mm

Disclaimer: Due to the nature of bike manufacturing, specification & finishes, component availability and price may be subject to change without prior written notification. Also images may not match final specifications due to component availability.

Due to Covid-related scheduling and component availability challenges, bike specifications are subject to change without notice. Specifications may not be exactly what is shown in the photo.


Proper bike fit is as important as getting the right bike for the job. Long term comfort and performance can be greatly improved with the right size bike. This acts as a guide only, so if you are unsure, please visit your Silverback reseller to be professionally measured and sized for the perfect fit.



  • Can I ride the Supersonic unassisted?

    Yes, you can, albeit not as light as a normal road bike, you can ride it unassisted. If you ride without the battery, it is closer to the weight of a normal road bike.

  • Can I add lights onto the system?

    Some lights can be added onto the electric system - but that depends on the type of light and FSA eBike system compatibility.

  • I don't know the FSA electric system - is it any good?

    Yes, we only work with quality electric drive systems from established manufacturers. FSA has a long time track record for quality and warranties to back it up.

  • Can I use the Supersonic for touring?

    Yes, the Supersonic has frame bosses to fit touring accessories, as well fenders up to 28C.

  • Can I tune my S-Electro Supersonic to increase the power-assist speed limit?

    Due to strict regulations governing e-bikes, it is neither allowed nor recommended to alter the speed.

  • What is the intended use of the S-Electro Supersonic?

    It is intended for on-road use only.

  • What is the range of the S-Electro Supersonic?

    The consumption of the battery is heavily dependant on environmental factors. The range can vary depending on the load of the sstem.

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