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    • OVERVIEW
    • WHY IT'S BEST
    • SPECIFICATIONS
    • GEOMETRY & SIZE CHART
    • REVIEWS
    • DOWNLOAD PDF

    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.
    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-tech-highlight-1-speedlab.jpg?v=1597674737

    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.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-tech-highlight-2-speedlab.jpg?v=1597674737

    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.

    DESIGNER NOTES.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/s-electro-comp-semi-int-alloy-frame-icon.png?v=1595568707

    ALLOY FRAME

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/carbon-rigid-fork-icon.png?v=1595229686

    RIGID CARBON FORK

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/bigger-volume-tyres-icon.png?v=1595193334

    HIGHER VOLUME TYRES

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/integrated-battery-icon.png?v=1595580326

    INTERNAL BATTERY

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/electric-assistance-icon.png?v=1595229686

    ELECTRIC ASSIST

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/internal-cable-routing-icon.png?v=1595193334

    INTERNAL ROUTING

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/hydraulic-disc-brakes-icon.png?v=1595229686

    HYDRAULIC DISC BRAKES

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/fender-rack-mount-icon.png?v=1595229686

    FENDER COMPATIBLE

    WHY IT’S BEST.

    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.

    ENGINEERING NOTES.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-engineering-note-geometry.jpg?v=1597674768

    GEOMETRY

    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.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-engineering-note-battery.jpg?v=1597674769

    INTERNAL BATTERY

    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.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-engineering-note-fork.jpg?v=1597674769

    RIGID CARBON FORK

    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.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-engineering-note-wheels.jpg?v=1597674768

    WHEEL COMPATIBILITY

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

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-engineering-note-fork-offset.jpg?v=1597674768

    FORK OFFSET

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

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-engineering-note-components.jpg?v=1597674768

    COMPONENTS

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

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/selectro-supersonic-engineering-note-led-button.jpg?v=1597674768

    INTEGRATED TOP TUBE LED BUTTON

    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.

    SPECIFICATIONS.

    E-DRIVE SYSTEM
    Motor FSA System HM 1.0 250W Rear Hub-Motor
    Battery FSA System HM 1.0 250Wh Battery
    Charger FSA System HM 1.0 Charger.
    SwitchFSA System HM 1.0 Smart-LED Button
    DRIVETRAIN
    Crankset Shimano 105 50-34T Chainwheel
    Cassette Shimano 105 11-30T Cassette
    Rear Derailleur Shimano 105 11-Speed Rear Derailleur DA 34T
    Front DerailleurShimano 105 11-Speed Front Derailleur BO 53T.
    Shifters Shimano 105 Hydraulic Brake and Shifter w/ Caliper
    Chain Shimano CN-HG601-11 11-Speed Chain w/End Pin
    Headset FSA Fully integrated cable routing headset, for 55,8mm OD headtube, for 1-1/8" to 1-1/2" tapered fork.
    SUSPENSION
    Fork 700C Carbon Fork, M12x100mm, Full Internal Cable Routing in Steerer
    WHEELS
    Hubs Front Hub: Alloy Sealed Bearings, 100x12, 6 Bolt, 32H, Rear Hub: FSA System HM 1.0, 250Wh Hub Motor
    Rims Alexrims ATD500, 700C, 19mm Internal Width and 24mm Deep
    Tyres 700x32c Vittoria Zaffiro
    COCKPIT
    Seatpost Surface 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.
    Handlebar FSA ENERGY HB Compact; W: 380 for size XXS, W: 400 for size XS, W: 420 for size S, W: 420 for size M, W: 420 for size L, W: 440 for size XL, W: 440 for size XXL
    Stem FSA 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
    Seatclamp Surface Alloy w/Steel Bolt
    Grips Velo Handlebar Wrap, Seude Black, Plug with Expander Bolt
    FRAME
    Frame Aluminum Road e-Bike, Internal Battery. Compatible with up to 32C tyre, or 28C with a fender.
    BRAKES
    Brake set Included in Brakeset or Shifter, Rotors: Shimano RT66 160mm

    Disclaimer: Due to the nature of bike manufacturing, specification, finishes and price may be subject to change without prior written notification.

    Disclaimer: 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.

    FIND YOUR FIT

    FIND YOUR FIT.

    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.

    GEOMETRY.