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

    AWARD WINNING DESIGN, RACE WINNING BIKES.

    Bred for the most demanding courses the world over, the Stratos CF 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 top-end 12-Speed XX1, 100mm Fox 32 SC, and Surface Carbon wheels, it sets the scene for serious racing. 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 SBC.

    BOXED ASYMMETRIC FORCE DISSIPATION.

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

    BURST FLEX SUSPENSION KINEMATICS/SUSPENSION CURVE.

    The Suspension kinematics are designed so that the suspension feels the same for different sized riders. Small bikes are less progressive, Medium bikes more and Large bikes the most. Similar shock tune, & similar rear triangle used across sizes, but the suspension linkage is size specific. This is designed to rotate the shock more - give more mechanical advantage/leverage over the suspension to the lighter (smaller rider), and to the bigger bike, give less mechanical advantage - resulting in more progressive suspension.

    DESIGNER NOTES.

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

    CARBON FIBER FRAME

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

    INTERNAL CABLE ROUTING

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/oversized-pivot-bearings-icon.png?v=1595193334

    OVERSIZED PIVOT BEARINGS

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

    INTERNAL DROPPER POST READY

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/burst-flex-icons.png?v=1595193334

    BURST FLEX

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

    ASYMMETRIC FRAME

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

    BIGGER VOLUME TYRES

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/boost-148-icon.png?v=1595231562

    Boost spacing

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

    TUBELESS READY

    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. Easy to maintain - the Stratos purposefully only needs basic workshop tools to service. In real life racing, this could be the difference between a DNF and a great result with minimal down time.
    2. The Stratos frame is designed with flexible seat stays and does not need bearing pivots there - that means less maintenance, less risk of bearing failure and less associated weight.
    3. Stratos SBC is built to go from 'shop floor-to-Epic'. The component choices are of the highest quality and fit for purpose.
    4. Burst Flex suspension paired with a Fox Factory Float rear shock creates a platform that pedals really well and takes bigger hits without flinching.
    5. Dropper compatibility means that you can set the Stratos up for the most technically demanding tracks.
    6. Stratos CF SBC is a race bred machine. In a game of numbers, the Startos has the right ones. Race tuned POP Geometry is designed to move the rider on amore pedal efficient position. This position also majorly improves handling, balance and traction on the climbs and descents.

    ENGINEERING NOTES.

    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.

    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.

    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 in a lighter frame that requires less maintenance.

    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.

    METRIC SHOCK

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

    OVERSIZED TAPERED PIVOT

    The massive main pivot uses angular contact headset bearings, with the larger 52mm bearing used on the drive side to cope with the additional chain forces. The angular contact design allows for bearing wear to be tightened out - the same as would be done at the headtube.

    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.

    RIDER FOCUSED HYDRATION

    Front bottle is slightly offset to the drive-side of the frame for ease-of-access and good visibility when reaching for hydration mid-ride. Two bottle mounts in the main triangle. When it comes to water bottles, two is definitely better than one.

    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.

    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.

    TYPE OF CARBON USED AND LAY UP BENEFITS

    The structure is mainly composed of T700 UD carbon fibre. Offering equilibrium in stiffness to strength ratio. Rear triangle is constructed with high-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 XX1 Eagle, DUB, 34T
    Cassette SRAM CS XG 1299 Eagle 10-50T
    Rear Der SRAM XX1 Eagle
    Shifters SRAM XX1 Trigger shifter
    Bottom Bracket SRAM BB-DUB-PF
    SUSPENSION
    Fork Fox Factory 32 Float Stepcast, 29", BOOST, 15x110mm, Tapered Steerer, 44mm Crown Offset
    Rear shock Fox Factory Float, 190x42mm Metric, Stratos Tune
    WHEELS
    Hubs DT Swiss 240, Sealed bearing, 6bolt, XD Driver
    Rims Surface carbon rim
    Tyres Maxxis Rekon Race 29" x 2.25" Tubeless Ready
    COCKPIT
    Seatpost Carbon 30,9mm, Ti Bolts
    Saddle Surface Race, Carbon Rails
    Handlebar Surface 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 SRAM DB LVL Ultimate, 160mm rotors
    WEIGHT
    Weight 9.99kg
    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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