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    • OVERVIEW
    • WHY IT'S BEST
    • SPECIFICATIONS
    • GEOMETRY & SIZE CHART
    • REVIEWS
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    Feature packed XC full suspension bike with asymmetric frame

    Stratos AL SX is a value packed trail-ready full suspension mountain bike for every recreational rider. Silverback's POP geometry, along with the super wide range Eagle drivetrain, makes it a strong climber and a balanced confident descender. The linkage driven asymmetric single-pivot suspension is tuned for optimal small bump sensitivity and big-hit compliance without power delivery penalties. The suspension curve is designed to offer full use of available travel. The Stratos AL SX uses the same frame as the AL 1.0. Based on the groundbreaking Stratos CF race-machine, but adapted to offer a more value-focused, mild-mannered bike for the everyday rider. Time to upgrade from that hardtail or ready for more demanding trails? The Stratos AL SX is designed to take care of Trails, XC or marathon business.
    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-tech-highlight-1-speedlab.jpg?v=1595437924

    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.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-tech-highlight-2-speedlab.jpg?v=1595437924

    POP GEOMETRY

    POP geometry or Position of Power geometry moves the rider in a more efficient riding posture, more balanced climbing and descending position and engages larger muscle groups for power delivery.

    DESIGNER NOTES.

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

    HYDRO FORMED ALLOY TUBING

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

    POP GEOMETRY

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

    ASYMMETRIC 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

    BURST PIVOT

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

    AIR SUSPENSION FORK

    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

    WHY IT’S BEST.

    1. AL SX is a feature packed Stratos AL for the guys that does not want or need a dropper.
    2. Very similar in specification to the AL3, the AL SX is a 12 speed SRAM Eagle SX bike. That means reliable performance, quality shifting and sensible gear ratios for climbing and descending.
    3. POP geometry or Position of Power geometry moves the rider in a more efficient riding posture, more balanced climbing and descending position and engages larger muscle groups for power delivery.
    4. Stratos AL SX can fit two water bottles in the main triangle, one full size on the DT and one small bottle on the ST.
    5. AL SX is dropper post compatible should you in the future feel that you would like to give it a go.
    6. Featuring BURST Pivot suspension, with 120mm of travel front and rear, the AL SX is ready for when you advance your technical riding skills!
    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-engineering-note-asymmetric-frame-speedlab.jpg?v=1595437757

    ASYMMETRIC FRAME

    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-al-sx-engineering-note-suspention-speedlab.jpg?v=1595437757

    BURST PIVOT SUSPENSION

    BURST Pivot is the XC/Light Trail implementation of our popular BURST platforms. It combines great pedaling performance with a progressive endstroke to create a platform that reacts intuitively to different circumstances. Large bearings in the seatstay mounted pivots, near the dropouts, ensure a good service life.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-engineering-note-dropper-compat-speedlab.jpg?v=1595437755

    DROPPER POST READY/COMPATIBLE

    With dropper posts becoming standard on all disciplines of mountain biking, this was a no-brainer; what's more interesting is where this technology is headed. Stratos can accommodate much longer droppers, giving the rider more options and freedom of movement.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-engineering-note-pop-geometry-speedlab.jpg?v=1595437757

    POP GEOMETRY ADAPTED FOR XC/TRAIL/MARATHON

    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. Stratos AL has 120mm travel and has some geometry changes that give a slightly more relaxed ride that its carbon fibre counterpart, aimed at riders looking to spend longer days in the saddle or dabble in trail riding.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-engineering-note-sheathed-cable-speedlab.jpg?v=1595437757

    SHEATHED CABLE ROUTING

    All the looks of internal cable routing, but without the hassle. Cables run underneath a polyurethane sheath on the downtube, which hides the cables but can still be removed for ease of maintenance.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-engineering-note-smooth-welds-speedlab.jpg?v=1595437756

    SMOOTH WELDS

    Get the great looks and smooth lines of carbon fibre, without the cost implications.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-engineering-note-sx-eagle-speedlab.jpg?v=1595437756

    SX EAGLE 1X DRIVETRAIN

    The SX Eagle 1x12spd drivetrain offers plenty of gear options for both climbing and descending. A 12 Speed SRAM Eagle drivetrain, compliment the Stratos' versatile nature.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-engineering-note-tapered-pivot-speedlab.jpg?v=1595437757

    TAPERED PIVOT AND BEARING DETAILS

    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.

    https://cdn.shopify.com/s/files/1/0082/4128/3143/files/stratos-al-sx-engineering-note-two-water-bottles-speedlab.jpg?v=1595437756

    TWO BOTTLE MOUNTS IN THE MAIN TRIANGLE

    When is comes to water bottles, two is definitely better than one.

    SPECIFICATIONS.

    DRIVETRAIN

    CranksetSRAM FC X1 Eagle BOOST, 148 DUB, 178mm, 32t, 170mm/S, 175mm/M/L/XL
    CassetteSRAM CS PG1210 Eagle 11-50t
    Rear DerSRAM SX Eagle 12spd
    ShiftersSRAM SX Eagle
    Bottom BracketSRAM DUB BSA MTB73

    SUSPENSION

    ForkRockshox Judy TK29, 29", BOOST 15 X 110MM Axle, 120MM travel
    Rear shockXFusion 02 PRO RL, 210 x 47.5mm, manual lockout, B-Tune

    WHEELS

    HubsShimano MT400B F 110 x 15mm / MT6010B 148 x 12mm R
    RimsSurface 29quot;, 21mm, 32H
    TyresFront: Maxxis Forekaster 120TPi 29x2.35 EXO TR / Rear: Maxxis Rekon Race 20TPi 29x2.35 EXO TR

    COCKPIT

    SeatpostSurface Alloy 30.9mm
    SaddleSurface Race, Cr-Mo Rails
    HandlebarSurface Alloy Butted, 31.8mm, 9deg backsweep, 5deg rise, 780mm width
    StemSurface Alloy 6deg rise, 45mm S/M, 55mm L/XL

    FRAME

    FrameNew Stratos asymmetric Hydro formed 6061 Alloy. 120mm travel, Boost 148mm. tapered headtube.

    BRAKES

    Brake setShimano BL-MT200 hydraulic disc brakes, 180mm F / 160mm R

    WEIGHT

    Weight14.82kg 
     
    Weight Limit110kg - combined weight of bike and rider (including all kit)

    TRAVEL

    Travel120mm

    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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