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

    THE PRIVATEER'S CHOICE RACE BIKE.

    Bred for the most demanding XC courses the world over, the Stratos was designed from the ground up to trounce any terrain. Asymmetric design dissipates load based on magnitude and position, levitating stresses where it's most concentrated. Paired with 12-Speed X01 Eagle, 100mm Fox 32 Performance SC, and Surface Carbon wheels, it sets the scene for serious racing. CF1 is the perfect privateer race bike. Oversized tapered pivot and Burst Flex suspension makes for a stiff, responsive, extremely light and agile race bike. Dropper post compatibility for versatility, nothing will be in the way of your success on-board a Stratos.

    BOXED ASYMMETRIC FORCE DISSIPATION

    By reducing peak stresses at points in the frame, the entire bike can be constructed lighter. On a full suspension bike, this becomes even more important to have ‘balanced’ kinematic through the middle plane of the frame, that is not bias toward the drive or non-drive side. The drive side sees long periods of loading, of relative low to medium force. Where the non-drive side sees momentousness loading, of a far higher magnitude. So very different forces – localized to a specific side.

    ROTATING SHOCK

    Shock rotates upwards diverting forces. To support that, the shock brace is added. This brace is most needed when the forces are greatest, so at full compression. At full compression, the shock is least in line with the top tube. This strut diverts forces from top tube to the downtube.

    DESIGNER NOTES.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-cf-1-burst-flex-iconsspeedlab.png?v=1595411381

    BURST FLEX

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-cf-1-asymmetric-frame-icon-speedlab.png?v=1595411381

    ASYMMETRIC FRAME

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-cf-1-carbon-icon-speedlab.png?v=1595411381

    CARBON FIBER FRAME

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-cf-1-internal-dropper-post-ready-icon-speedlab.png?v=1595411381

    INTERNAL DROPPER POST READY

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-cf-1-bigger-volume-tyres-icon-speedlab.png?v=1595411381

    BIGGER VOLUME TYRES

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/oversized-pivot-bearings-icon_a5aa894a-262b-4df8-816e-b727e9a54e3c.png?v=1595411381

    OVERSIZED PIVOT BEARINGS

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-cf-1-internal-cable-routing-icon-speedlab.png?v=1595411382

    INTERNAL CABLE ROUTING

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/s-electro-comp-semi-int-boost-148-icon.png?v=1595568706

    Boost spacing

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/tubeless-ready-icon.png?v=1596016769

    Tubeless ready Wheels

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/pop-geometry-icon.png?v=1596006440

    POP Geometry

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/superspeed-1x-drivetrain-icon.png?v=1595490977

    1X Drivetrain

    WHY IT’S BEST.

    1. Stratos CF1 sports the same lightweight carbon frame as the top-of-the-range SBC race machine.
    2. Parts on the CF1 has been chosen to offer a top-end no compromise Privateer race bike. Pick it up today, race tomorrow.
    3. Boxed Asymmetric frame design makes for an incredibly stiff frame that's light where it can be and strong where it needs to be.
    4. Stratos CF1 features premium Surface Elite Carbon MTB wheels. Quality backed with a Lifetime Guarantee* See Surface product page for details.
    5. Stratos CF1's race focused POP geometry makes for a bike that is well balanced, offering major traction on climbs and grip on descents. POP also engages bigger muscle groups to pedal, making climbing easier.
    6. CF1 is dropper compatible with internal routing. The added weight of the dropper will soon be forgotten after the first drop - go on, do it!
     Silverback Stratos CF1 1 X Drivetrain

    1X DRIVETRAIN SPECIFIC DESIGN

    Front derailleurs are dead! 1 X Drivetrain means a single chaingring in the front and multiple gears on the cassette. Most popular setups is 1 X 10, 1 X 11 or 1 X 12 With that comes a wider main pivot bearing stance for increased stiffness.

     Silverback Stratos asymmetric suspension

    BOXED ASYMMETRIC TUBE PROFILES

    Asymmetric tubes allow for the dispersion of shock forces between the top tube and downtube. At the riding sag point most of the shock forces are directed along the top tube. At suspension bottom-out, the rear shock rotates and shock forces are split between the top tube and downtube via the single sided support strut.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-cf-1-carbon-burst-flex-speedlab.jpg?v=1595411525

    BURST FLEX SUSPENSION

    Burst flex suspension platform utilizes flexible carbon seat stays, eliminating the need for a rotational pivot (bearings or bushings) in the rear triangle. Carbon fibre's properties work alongside the shock and leverage ratio to create a cohesive suspension platform. Elimination of a pivot point results a lighter frame that requires less maintenance.

     Silverback Stratos storage box

    IN-TRIANGLE STORAGE BOX CRADLE

    Optional storage box for spares or nutrition without reducing bottle count. Can be detached when you'd rather save the weight. Top-opening zip for easy access while riding.

     Silverback Stratos dual suspension mountain bike

    METRIC SHOCK

    Metric shocks perform better and have optional bearing hardware for low friction rotation, supported on the rocker side.

     Silverback Stratos XC geometry

    POP GEOMETRY ADAPTED FOR RACING

    As modern XCO and XCM courses become more technical, we've adapted the bikes to suit not only the current trails, but also where XC is headed. Slacker head angles and longer wheelbases, along with other geometry and suspension tweaks allow for a bike that is more capable and forgiving on the downhills, but does not sacrifice any uphill ability in the process.

     Silverback Stratos mtb sag indicator

    SAG INDICATOR

    Don't leave setup up to chance, line up the rocker notch with the marking on the seatstay to guarantee perfect sag setup.

     Silverback Stratos carbon mtb

    SINGLE SIDED SUPPORT STRUT (REAR SHOCK TO DT)

    By triangulating the tubes it was possible to negate the need for a support strut on both sides. The role of the support strut is to split shock forces between the top tube and down tube.

     Silverback Stratos carbon mtb wheels

    SURFACE CARBON WHEELS

    Stratos features high quality Surface carbon rims built on DTSwiss 350S hubs. With a 21mm ID, and a combined weight of 1475g for the set, this is a stiff lightweight and super strong wheelset ready to tackle the most demaning XC courses. Surface wheels are tubeless ready.

     Silverback Stratos carbon fibre layup

    TYPE OF CARBON USED AND LAY UP BENEFITS

    The structure is mainly composited of T700 UD carbon fibre. Offering equilibrium in stiffness to strength ratio. Rear triangle is constructed with migh-modulus carbon fibre to ensure indefinite fatigue life of the flex stays. UD carbon fibre has absolute strength in the direction of the fibre. Strategically controlling the fibre lay-up, produces a matrix that is stiff where desired and strong where necessary, with minimum weight addition. The frame is finished in a 3K Twill weave for a robust composite surface that can withstand any demands exerted by the rider.

    SPECIFICATIONS.

    DRIVETRAIN
    Crankset SRAM X1 Eagle, DUB, 34T
    Cassette SRAM CS XG 1295 Eagle 10-50T
    Rear Der SRAM X01 Eagle
    Shifters SRAM GX Eagle Trigger shifter
    Bottom Bracket SRAM BB-DUB-PF
    SUSPENSION
    Fork Fox Performance 32 Float Stepcast, 29", Fit 4, BOOST, 15x110mm, Tapered Steerer, 44mm Crown Offset
    Rear shock Fox Performance Elite Float, 190x42mm Metric, Stratos Tune
    WHEELS
    Hubs DTSwiss 350S Straightpull hubs
    Rims Surface Carbon Rims
    Tyres Maxxis Rekon Race 29" x 2.25" Tubeless Ready
    COCKPIT
    Seatpost Carbon 30,9mm, Ti Bolts
    Saddle Surface Race, Ti Alloy Rails
    Handlebar SBC Carbon Low rise 31.8mm, 9deg Back sweep, 12mm Rise, 780mm
    Stem Surface 3D Forged Alloy, 7deg Rise, 60mm S/M, 75mm L/XL
    FRAME
    Frame Silverback Asymmetric Stratos Frame, 3K Twill Carbon Fiber, UD Carbon Flex stays and oversize pivots. BOOST, 29", 100mm Travel, Tapered HT
    BRAKES
    Brake set Shimano XT M8000
    WEIGHT
    Weight 11.13kg
    Weight Limit 120kg - combined weight of bike and rider (including all kit). 
    TRAVEL
    Travel 100mm

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

    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 profesionally measured and sized for the perfect fit.

    GEOMETRY.

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