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

    RACE TO THE TOP, KEEP THE RACING TO THE BOTTOM.

    The CF2 brings unbelievable value to the carbon Stratos range. Bred for the most demanding courses the world over, the Stratos was designed from the ground up to trounce any terrain. Asymmetric design dissipates load based on impact magnitude and suspension position, alleviating stresses where it's most concentrated. Paired with 12-Speed Shimano SLX 12spd, 120mm Fox 34 Rhythm fork, and Surface 23mm alloy wheels, it sets the scene for competitive racing. CF2 is the perfect race bike for unsponsored riders. Sharing a frame with the top end Stratos, the CF2 specification is chosen to carefully balance quality, weight and maximum service life. Oversized tapered pivot and Burst Flex suspension makes for a stiff, responsive, extremely light and agile race bike. The included dropper post opens a new world of riding possibilities and line choices. Stratos CF2 leaves nothing to chance.

    FINITE ELEMENT ANALYSIS

    On Solidworks the shapes and kinematics are fine tuned and (FEA) finite element analysis can be run on the frame to analyse stresses. Our engineers then spend time with the factory to meticulously work out the carbon selection and layup for optimum strength and stiffness to least possible weight. The frame has to pass rigorous lab testing before the first riding prototype rolls out of the factory.

    ADAPTED POP GEOMETRY

    What: Moving the rider forward. Better pedaling position on climbs and better traction on descents. How: Shorter stem, Wide bars, adapted geometry (longer front triangle, steeper seattube, slacker headtube) and less fork offset. Moving the rider forward in relation to the BB, whilst keeping the rear-end as short as possible Why: Benefits across riding disciplines. More control, better front wheel traction. Utilizing bigger muscle groups to aid pedaling. Centralized weight improves balance, while the short rear end improves handling.

    DESIGNER NOTES.

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

    CARBON FIBER FRAME

    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

    BURST FLEX

    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

    AIR SUSPENSION FORK

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

    BIGGER VOLUME TYRES

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

    OVERSIZED PIVOT BEARINGS

    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/pop-geometry-icon.png?v=1596006440

    Tubeless ready wheels

    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. CF2 is a real mountain bike in every sense of the word. For the rider that pushes hard on the climbs, and even harder on the downhills.
    2. Hitting gaps, drops and technical descents without any drama is just the click of the included dropper post lever away.
    3. The beefy Fox 34 Rhythm 120mm fork turns the Stratos CF2 from a crisp race rocket, to a super versatile bike every rider can benefit from.
    4. Surface 23mm tubeless ready wheels offers a great balance of strength to weight - and is fit for purpose on this machine.
    5. The CF2 can fit one full size and one 500ml water bottle in the main frame (in opposite side entry cages). This makes it perfect for all day outrides.
    6. CF2 is dropper compatible with internal routing. The added weight of the dropper will soon be forgotten after the first drop - go on, do it!
     1X drivetrain mountain bike

    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 CF 2 asymmetry

    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 CF 2 carbon

    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 CF 2 metric shock

    METRIC SHOCK

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

     XC / marathon racing 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.

     Suspension 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.

     carbon support strut

    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.

     Surface 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 CF 2 carbon 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 Shimano SLX, Hollowtech, 34t
    Cassette Shimano SLX 12spd, 10-51T
    Rear Der Shimano SLX M7100, 12spd
    Shifters Shimano SLX 12 spd shifter
    Bottom Bracket Shimano BB71 Pressfit
    SUSPENSION
    Fork Fox Rhythm 34 Float 2 Pos Remote 29", 120mm Travel, BOOST, 15x110mm, Tapered Steerer
    Rear shock Fox Performance Elite Float 2 Pos Remote LV EVOL, 190x42mm Metric, Stratos Tune
    WHEELS
    Hubs Shimano Centerlock Hubs
    Rims Surface Alloy, 23mm, TRS, 29"
    Tyres Front: Maxxis Forekaster 29" x 2.35 EXO TR / Rear: Maxxis Rekon Race 29" x 2.35" EXO TR
    COCKPIT
    Seatpost Surface - Dropper post, 125mm drop for S, 150mm for M/L/XL
    Saddle Surface Race, Ti Alloy Rails
    Handlebar Surface Alloy Butted, 31.8mm, 9deg backsweep, 5deg rise
    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 Deore M6000
    WEIGHT
    Weight 12.3kg
    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.

    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 profesionally measured and sized for the perfect fit.

    GEOMETRY.

    Customer Reviews

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