Sonder Sonder Signal
  • Signal ST frame in copper
  • Signal ST Frame
  • signal steel frame
  • signal steel frame logo
  • signal steel frame downtube
  • signal steel frame bottom bracket
  • signal steel frame rear axle
  • signal steel frame head tube
  • sonder signal steel - action
  • sonder signal steel - action
  • sonder signal steel - action
  • sonder signal steel - action
  • sonder signal steel - action
    Sonder Signal

    Signal ST FrameAggressive steel 29er hardtail frame

    £699

    A fast and aggressive steel 29er hardtail trail bike frame: the bike that inspires confidence on fast flowy trails and big mountains
    Buy Now. In stock for same day despatch.

    1

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    • Size
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    • Colour
      • Signal ST Frame
      • sonder signal steel frame in gunmetal
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    Need help choosing a bike or technical advice?

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    • Pop into a store 7 days a week
    • Call a Sonder Customer Hero on +44 (0)1773 417006 7 days a week
    • Email us at support@alpkit.com
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    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.

    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.

    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.

    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
    Medium: Riders between 5ft 6in and 5ft 10in
    Large: Riders between 5ft 9in and 6ft 2in
    X-Large: Riders of 6ft 2in +
     

    SizeSmallMediumLargeX-Large
    ST - Seat tube400425465485
    ETT - Effective Top Tube585606634664
    HT - Head tube100105115125
    HA - Head angle66666666
    SA - Seat tube angle74747474
    CS - Chainstay425425430435
    BB - BB drop65656565
    FO - Fork offset42/5142/5142/5142/51
    WB - Wheelbase1127114911831220
    SO - Standover730738760772
    RE - Reach420440465495
    SK - Stack601606615624
    Frame Spec

    Steel 29er hardtail mountain bike frame

    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 (not included)
    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 01773 417006.

    • Signal ST frame in copper
    • Signal ST Frame
    • signal steel frame
    • signal steel frame logo
    • signal steel frame downtube
    • signal steel frame bottom bracket
    • signal steel frame rear axle
    • signal steel frame head tube
    • sonder signal steel - action
    • sonder signal steel - action
    • sonder signal steel - action
    • sonder signal steel - action
    • sonder signal steel - action