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    Signal St XT

    Aggressive steel 29er hardtail

    £2,249 £2,599

    or from £97 /month

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    2

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    3

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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. Be Riding in 5 days.

    1

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    • Size
    • Colour
    • Size:

    • Colour:

    2

    Customize

    Edit

    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 carbon flat handlebar flatbar
    Sonder Aspect Carbon Riser 780mm

    +£74.99

    Saddle

    Sonder Abode [OEM]
    Sonder Abode Black / 138

    +£0.00

    Sonder Zone [OEM]
    Sonder Zone 133 / Black

    +£34.99 +£29.99

    Sonder Zone [OEM]
    Sonder Zone 152 / Black

    +£34.99 +£29.99

    Sonder Kura [OEM]
    Sonder Kura

    +£47.99 +£34.99

    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

    RockShox Reverb / 125mm Drop / 31.6 x 390mm
    RockShox Reverb / 125mm Drop / 31.6 x 390mm

    +£99.99 +£49.99

    RockShox Reverb / 150mm Drop / 31.6 x 440mm
    RockShox Reverb / 150mm Drop / 31.6 x 440mm

    +£174.99

    Stem

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

    +£0.00

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

    +£0.00

    Sonder Piskie [OEM]
    Sonder Piskie 31.8mm / 55mm

    +£0.00

    sonder talo bike stem
    Sonder Talo 35

    +£44.99 +£34.99

    sonder talo bike stem
    Sonder Talo 45mm

    +£44.99 +£34.99

    Forks

    RockShox Pike Ultimate RCT3 / 29 / 130mm
    RockShox Pike Ultimate RCT3 / 29 / 130mm 29er / 130mm

    +£0.00

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

    +£149.99

    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

    +£44.99

    3

    Select Accessories

    Edit

    Bottle Cages

    No Bottle Cages
    No Bottle Cages (none)

    +£0.00

    Sonder Buzz Wire
    Sonder Buzz Wire Single

    +£5.49 +£4.99

    Sonder Buzz Wire
    Sonder Buzz Wire Pair

    +£10.99 +£8.99

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

    +£6.99 +£5.99

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

    +£9.99 +£7.99

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

    +£6.99 +£5.99

    Ti Wire Bottle Cage
    Ti Wire Bottle Cage Single

    +£44.99 +£34.99

    Ti Wire Bottle Cage
    Ti Wire Bottle Cage Pair

    +£79.99 +£79.99

    Lights

    No Lights
    No Lights (none)

    +£0.00

    Tau
    Tau Rear

    +£16.99 +£12.99

    Alpkit Phase 400 rechargeable bike light
    Phase 400

    +£24.99 +£19.99

    Alpkit Boson rechargeable bike light and hand torch
    Boson

    +£39.99 +£19.99

    Lights Accessories

    No Bike Light Accessories
    No Bike Light Accessories (none)

    +£0.00

    alpkit helmet mount bike light gps
    Helmet Mount Black

    +£7.99 +£4.99

    alpkit cockpit bike light gps mount
    Garmin Outfront Mount / Black

    +£24.99 +£15.99

    Mudguards

    No Mudguards
    No Mudguards (none)

    +£0.00

    sonder fender
    Sonder Fender Front MTB

    +£4.99 +£4.99

    Pedals

    No Pedals
    No Pedals (none)

    +£0.00

    Sonder Torque
    Sonder Torque Black

    +£39.99 +£29.99

    reko clipless bike pedal
    Sonder Reko

    +£59.99 +£50.99

    distortion flat mountain bike pedal
    Sonder Distortion

    +£54.99

    sonder slingshot clipless pedal
    Sonder Slingshot Black

    +£79.99 +£59.99

    sonder Jekyll clipless and flat hybrid pedal
    Sonder Jekyll Black

    +£79.99 +£59.99

    Initial Price

    Signal St XT / Select a frame...
    £2,249.00

    Extras

    £0.00

    Total Price

    £2,249.00
    or from £97 /month
    Buy Now. Be Riding in 5 days.

    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 XT M8100 | 10-51t | 12-speed
    Chain:Shimano SLX | 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:XS: TBC S: 2.91kg; M: 3.0kg; L: 3.01kg; XL: 3.02kg;
    Build:XS: TBC 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)

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