Sonder Sonder Signal
  • Signal Ti 2026 Eagle 90 SAMPLE
  • Signal Ti Eagle S100
  • Signal Ti Eagle S100
  • Signal Ti Eagle S100
  • Signal Ti Eagle S100
  • Signal Ti Eagle S100
    Sonder Signal

    Signal Ti Eagle S100Aggressive titanium 29er hardtail

    £1,799

    An aggressive titanium 29er hardtail trail bike with Sram S100 1x12 groupset and Rockshox Recon Silver RL fork: the bike for flat-out speed and sessioning the groomed trail centre trails

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    • Size:

      • Customise and buy now. Deliveries from 28 September 2026
    Built to Order. Be Riding from 28 September.

    Need help choosing a bike or technical advice?

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    • Call a Sonder Customer Hero on +44 (0)1773 417006 7 days a week
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    The Signal is fast, it’s 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 groomed descents at Llandegla and Glentress or take it to the big mountains and get loose.

    At a glance

    • Sram S100 12-speed groupset
    • Rockshox Psylo fork
    • Sonder Nova 29" wheelset
    • Hand-welded titanium frame

    That low BB and long wheelbase gives a planted and stable feel through the corners and on 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 in wheels can be paired with 2.2 to 2.5ins tyres with clearance for winter conditions.

    The titanium Signal frame is stiff, light and durable. 3Al 2.5V Aeronautical grade titanium tubing softens trail buzz and provides the engaging and lively feel that only Titanium can.

    Features

    2.5” tyre clearance

    Designed around a 29" wheel to maximise rolling speed over rock gardens, roots and uneven mountain terrain, with bucketloads of clearance for 2.5” tyres and plenty of space to avoid getting clogged up in winter mud.

    Aggressive trail geometry

    Neil designed the Signal to suit his aggressive wheels-off-the-ground riding style. He wanted a bike that felt fast and stable over rough ground and gave you the confidence to be playful and creative knowing it could handle it - less twitchy, more planted. A low bottom bracket makes it corner like its on rails, with a spacious reach that gives you room to move around on the bike.


    Signal is designed around a 140mm travel fork, with 64.5/76.5 head and seat angles that give you the confidence to bomb the descents without sacrificing climbing ability when you reach the other side of the valley.

    Clean lines and internal cable routing

    ​An inline seat stay and top tube for all sizes gives Signal a super clean look. Fully guided, internally routed cables keep things tidy and quiet and there's routing for a dropper seatpost too.

    3D Printed dropouts and a Universal Derailleur Hanger (UDH)

    Signal uses 3D printed dropouts with a 148mm boost thru axle standard and a UDH mech hanger. The result is a sleek, minimal design with all the strength without any excess material.


    Fast becoming the industry standard, UDH hangers are widely available so you can get rolling again sooner after any mid-ride mishaps! The UDH frame fitting also gives you the option of running SRAM's latest groupsets with direct-mount derailleurs.

    Zero Stack (ZS)  Headtube

    We've redesigned the headtube to use a zero stack (ZS) headset giving extra strength around the bearings. This redesign also creates more surface area for the downtube and top tube welds meaning an even more bombproof joint to handle year after year of aggressive trail riding.

    Build Spec
    Frameset
    Frame:Signal Ti Frame | Titanium
    Fork:RockShox Psylo Silver R | 140mm (travel)
    Headset:FSA Orbit N0.57E
    Groupset
    Shifters:SRAM S100 Eagle | Trigger Shifter | MMX
    Brakes:SRAM DB4 Brake | Hydraulic | Post Mount
    Rotors:SRAM Centerline | 180mm (front), 160mm (rear) | 6-bolt
    Rear derailleur:SRAM S100 Eagle | Rear Derailleur
    Chainset:SRAM S100 Eagle | Chainset | 32t | 165mm
    Cassette:SRAM PG1210 | 11-50t | 12-speed
    Chain:SRAM S100 Eagle | 12 speed
    Bottom bracket:N/A
    Wheelset
    Wheels:Sonder Nova 29" UK Made
    Tyres:Schwalbe Hans Dampf Super Trail Evo TLE | 29x2.35 | Black
    Tubes:WTB | 29 x 2.2-2.4"
    Finishing kit
    Handlebars:Sonder Aspect Riser | 780mm
    Stem:Sonder Piskie
    Seatpost:Sonder Seatpost | 31.6mm
    Saddle:Sonder Abode
    Grips:Sonder Clutch | Black
    Weight
    Frame:S: 1.9kg; M: 1.95kg; L: 2kg; XL: 2.05kg;
    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.
     

    SizeSmallMediumLargeX-Large
    Rider Height

    5ft 2in - 5ft 7in

    (158-173cm)

    5ft 6in - 5ft 10in

    (170-177cm)

    5ft 9in - 6ft 2in

    (175-187cm)

    6ft 2in +

    (187cm +)

    ST - Seat tube390410430460
    ETT - Effective Top Tube569597625653
    HT - Head tube100110125140
    HA - Head angle64.564.564.564.5
    SA - Seat tube angle76.576.576.576.5
    CS - Chainstay435435440440
    BB - BB drop80808080
    WB - Wheelbase1149117912151252
    RE - Reach430455480505
    SK - Stack582591605618
    AC - Axle to Crown516516516516
    Frame Spec

    Titanium 29er hardtail mountain bike frame

    Weight: S: 1.9kg; M: 1.95kg; L: 2.0kg; XL: 2.06kg
    3Al/2.5V Aeronautical Grade Hand Welded Titanium Frame
    148mm boost thru axle standard
    Clearance for 2.5” tyres
    Headset: ZS44/28.6 - ZS56/40
    73mm BB shell
    Internal, fully guided cable routing
    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.

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