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    Signal ST XT

    Aggressive steel 29er hardtail

    $3,399

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    A fast and aggressive steel 29er hardtail trail bike with Shimano XT 1x12 groupset and Rockshox Pike Ultimate fork. The bike that inspires confidence on fast, flowy trails and big mountains.
    Buy Now. Deliveries from 1 January.

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    • Size
    • Colour

    • Size:

    • Colour:

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    Customize

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    Every Sonder bike is built to order so tell us exactly how you want it. Make any changes you want from the standard build and when you're done, just hit “Add to Bag” at the bottom of the page.

    Handlebar

    Sonder Aspect Riser [OEM]
    Sonder Aspect Riser 780mm

    +$0.00

    Sonder Aspect Riser [OEM]
    Sonder Aspect Riser 780mm

    +$0.00

    sonder aspect carbon flat handlebar flatbar
    Sonder Aspect Carbon Riser 780mm

    +$99.99 +$84.99

    sonder scope handlebars
    Sonder Scope Handlebar 760mm

    +$49.99 +$42.49

    Saddle

    Sonder Abode [OEM]
    Sonder Abode Black / 138

    +$0.00

    Sonder Abode [OEM]
    Sonder Abode Black / 158

    +$0.00

    Sonder Kura [OEM]
    Sonder Kura

    +$59.99 +$49.99

    Sonder Zone [OEM]
    Sonder Zone 133 / Black

    +$44.99 +$37.49

    Sonder Zone [OEM]
    Sonder Zone 152 / Black

    +$44.99 +$37.49

    Brooks B17 Saddle [OEM] / Black
    Brooks B17 Saddle / Black Black

    +$169.99 +$137.49

    Seatpost

    X-Fusion Manic Drop Seatpost and Lever
    X-Fusion Manic Drop Seatpost and Lever 31.6mm / 125mm

    +$0.00

    X-Fusion Manic Drop Seatpost and Lever
    X-Fusion Manic Drop Seatpost and Lever 31.6mm / 150mm

    +$0.00

    X-Fusion Manic Drop Seatpost and Lever
    X-Fusion Manic Drop Seatpost and Lever 31.6mm / 170mm

    +$0.00

    Stem

    Sonder Piskie [OEM]
    Sonder Piskie 31.8mm / 35mm

    +$0.00

    Sonder Piskie [OEM]
    Sonder Piskie 31.8mm / 45mm

    +$0.00

    sonder talo bike stem
    Sonder Talo 35

    +$57.49 +$47.49

    sonder talo bike stem
    Sonder Talo 45mm

    +$57.49 +$47.49

    Forks

    RockShox Pike Ultimate RCT3 [OEM] / 29 / 130mm
    RockShox Pike Ultimate RCT3 / 29 / 130mm 130mm / 29

    +$0.00

    Cane Creek Helm MK2 Air / 29 / 130mm
    Cane Creek Helm MK2 Air / 29 / 130mm 130mm

    +$499.99

    Tubes

    WTB [OEM] Inner Tube / 29 / 2.2-2.4
    WTB Inner Tube / 29 / 2.2-2.4 Black

    +$0.00

    Tubeless Tyre Upgrade and Setup
    Tubeless Tyre Upgrade and Setup

    +$57.49

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      Bottle Cages

      No Bottle Cages
      No Bottle Cages (none)

      +$0.00

      Sonder Buzz Wire
      Sonder Buzz Wire Single

      +$0.00

      Sonder Buzz Wire
      Sonder Buzz Wire Pair

      +$0.00

      Sonder Buzz Wire
      Sonder Buzz Wire Single

      +$7.99 +$6.99

      Sonder Buzz Wire
      Sonder Buzz Wire Pair

      +$14.99 +$12.49

      love mud side blade side loading bottle cage left
      Sonder Sideblade Left Entry / Black

      +$8.99 +$7.99

      love mud side blade side loading bottle cage right
      Sonder Sideblade Right Entry / Black

      +$8.99 +$7.99

      love mud side blade side loading bottle cage left and right
      Sonder Sideblade PAIR / Black

      +$12.49 +$9.99

      Sonder Blade
      Sonder Blade Black

      +$22.49 +$19.99

      Sonder Blade
      Sonder Blade Black / Pair

      +$37.49 +$32.49

      Sonder Ti Wire Bottle Cage
      Sonder Ti Wire Bottle Cage Single

      +$57.49 +$47.49

      Sonder Ti Wire Bottle Cage
      Sonder Ti Wire Bottle Cage Pair

      +$99.99 +$84.99

      Front Lights

      No Front Light
      No Front Light (none)

      +$0.00

      Tau Rear
      Tau Rear Rear

      +$22.49 +$19.99

      Tau Rear
      Tau Rear Front

      +$22.49 +$19.99

      Tau Front
      Tau Front Front

      +$22.49 +$19.99

      Phase 550
      Phase 550

      +$32.49 +$24.99

      Phase 850
      Phase 850

      +$44.99 +$37.49

      Ariel
      Ariel Ariel

      +$57.49 +$47.49

      alpkit hadron bike light
      Hadron

      +$124.99 +$99.99

      Rear Lights

      No Rear Light
      No Rear Light (none)

      +$0.00

      Tau Rear
      Tau Rear Rear

      +$22.49 +$19.99

      Tau Rear
      Tau Rear Front

      +$22.49 +$19.99

      alpkit halo rear bike light
      Halo Light Black

      +$24.99 +$22.49

      Lights Accessories

      No Bike Light Accessories
      No Bike Light Accessories (none)

      +$0.00

      alpkit helmet mount bike light gps
      Helmet Mount Black

      +$9.99 +$8.99

      alpkit cockpit bike light gps mount
      Garmin Outfront Mount / Black

      +$34.99 +$24.99

      Mudguards

      No Mudguards
      No Mudguards (none)

      +$0.00

      sonder fender
      Sonder Fender Front MTB

      +$8.99 +$7.99

      Pedals

      No Pedals
      No Pedals (none)

      +$0.00

      reko clipless bike pedal
      Sonder Reko

      +$0.00

      distortion flat mountain bike pedal
      Sonder Distortion

      +$0.00

      Sonder Torque
      Sonder Torque Black

      +$49.99 +$42.49

      reko clipless bike pedal
      Sonder Reko

      +$69.99 +$49.99

      distortion flat mountain bike pedal
      Sonder Distortion

      +$84.99 +$64.99

      sonder slingshot clipless pedal
      Sonder Slingshot Black

      +$99.99 +$84.99

        Initial Price

        Signal ST XT / Select a frame...
        $3,399.00

        Extras

        $0.00

        Total Price

        $3,399.00
        Buy Now. Deliveries from 1 January.

        The Signal is for flat out speed.

        It pedals like an XC bike, descends like an enduro bike, and captures the rawness of riding a hardtail on fast, flowy singletrack. Stand up, sprint, and ride it hard on the groomed trails at Llandegla and Glentress or take it to big mountains and let loose.

        At a glance

        • Shimano XT M8100 12-speed groupset
        • Rockshox Pike Ultimate fork
        • Sonder Alpha 29" UK made wheelset
        • X-Fusion Manic dropper seatpost

        That low BB and long wheelbase gives a planted and stable feel through the corners and when tackling high speed descents. The low stack height leaves you with less of that ‘tall’ 29er feeling – you’ll feel like you’re 'in' the bike, not on the bike.

        Big wheels roll faster. The 29" wheels can be paired with 2.2 to 2.6in tyres with clearance for winter conditions.

        The Signal Steel rides beautifully – it’s got that distinctive steel feel to take the edge off the biggest hits while keeping stiffness where it counts so you can accelerate out of corners and track accurately through rocks and roots.

        Why XT?

        Shimano drivetrains are designed, engineered and manufactured to work as complete drivetrain systems. Shimano's new microspline hub means that you can run a 10 tooth cassette for a huge gear range. The new EV shifters and brakes provide loads of adjustment to get the perfect position as well as a rock-solid feel on the bars. And the 4-pot brakes provide consistent and reliable stopping power.

        Features

        Aggressive trail geometry

        ​Neil has designed the Signal St to suit his aggressive riding style. A low bottom bracket makes it corner like its on rails, a spacious reach gives you room to move around on the bike, and the 66/74 head and seat angles give you the confidence to bomb the descents and while still being able to climb like a mountain goat.

        Steel Frame

        Nothing feels quite so good as the famously springy and durable Steel. Signal St’s 4130 Chromoly, Hand Welded Steel tubing absorbs shock to soften the ride without any loss to feel or speed.

        2.6” tyre clearance

        ​Bucketloads of clearance for 2.6” tyres gives you the benefits of higher volume tyres without getting clogged up in UK conditions.

        Build Spec
        Frameset
        Frame:Signal St Frame | Steel
        Fork:RockShox Pike Ultimate | 130mm (travel)
        Headset:FSA Orbit C-40-ACB
        Groupset
        Shifters:Shimano XT M8100 | 1x | 12-speed
        Brakes:Shimano XT M8120 | Hydraulic | Post mount
        Rotors:Shimano RT66 | 180mm (front), 160mm (rear) | 6-bolt
        Rear derailleur:Shimano XT M8100 | Long cage | 12-speed
        Chainset:Shimano XT M8100 | 170mm | 32t
        Cassette:Shimano CS-M8100 | 10-51t | 12-speed
        Chain:Shimano CNM7100 | 12-speed
        Bottom bracket:Shimano MT800 | BSA
        Wheelset
        Wheels:Sonder Alpha 29" UK Made
        Front tyre:Goodyear Newton MTF Trail Tubeless | 29 x 2.5" | Black
        Rear tyre:Goodyear Newton MTR Trail Tubeless | 29 x 2.4" | Black
        Tubes:WTB | 29 x 2.2-2.4"
        Finishing kit
        Handlebars:Sonder Aspect Riser | 780mm
        Stem:Sonder Piskie
        Seatpost:X-Fusion Manic | 31.6mm
        Saddle:Sonder Abode
        Grips:Sonder Clutch | Black
        Weight
        Frame:S: 2.9kg; M: 3kg; L: 3.1kg; XL: 3.2kg;
        Build:S: TBC M: TBC L: TBC XL: TBC
        Pedals not included with full builds
        Specifications are subject to change without notice
        Geometry and Sizing

        Sizing

        It is important to get the right size bike, if the bike fits it will be faster, more comfortable, and easier to handle. You can also take into consideration the standover height to ensure you pick a bike that will be a good fit. If you measure your inside leg and ensure there is a minimum of an inch from the toptube to your crotch this will give you enough seatpost adjustment to find your optimum saddle height.

        Generally we recommend:
        Small: Riders between 5ft 2in and 5ft 7in (157-170cm)
        Medium: Riders between 5ft 6in and 5ft 10in (167-177cm)
        Large: Riders between 5ft 9in and 6ft 2in (175-187cm)
        X-Large: Riders of 6ft 2in + (187cm)

        Size Small Medium Large X-Large
        ST - Seat tube 400 425 465 485
        ETT - Effective Top Tube 592.5/td> 613.8 633.6 663.7
        HT - Head tube 100 106 115 125
        HA - Head angle 66 66 66 66
        SA - Seat tube angle 74 74 74 74
        CS - Chainstay 425 425 430 435
        BB - BB drop 65 65 65 65
        FO - Fork offset 42/51 42/51 42/51 42/51
        WB - Wheelbase 1134.7 1156.7 1183 1230
        SO - Standover 730 738 760 772
        RE - Reach 420 440 465 495
        SK - Stack 601.5 606.1 633.6 663.7
        Tyre
        Frame Spec

        Steel 29er hardtail mountain bike

        Weight: S: 2.91kg; M: 3.0kg; L: 3.01kg; XL: 3.02kg
        4130 Chromoly, Hand Welded Steel frame
        148mm boost thru axle standard
        Clearance for 2.6” tyres
        Headset: IS42/28.6 | IS52/40
        73mm BB shell
        External cable routing for brake and gear cables
        Stealth dropper routing
        31.6mm seatpost diameter, 34.9mm clamp
        Optimised for 130mm travel suspension fork (42 or 51mm offset)

        Your actual build date will depend on additional components you specify and from receipt of full payment. For any queries contact our Sonder team on +44 1773 417006.

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