Sonder Sonder Broken Road
  • Sonder Broken Road ST NX Eagle in Smoke grey
  • Sonder Broken Road ST in Forest green
    Sonder Broken Road

    Broken Road ST Eagle 90Wilderness trail bike

    £2,149

    Multi-day steel expedition mountain bike with the SRAM Eagle 90 1x12 groupset, Rockshox Reba RL forks, and Sonder Alpha 29" UK made wheels; this is designed for big mountain days and fully loaded adventures.
    Built to Order. Be Riding 1 May.

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      • Sonder Broken Road ST frame in forest green
      • Sonder Broken Road ST frame in Smoke grey
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    Steel wilderness hardtail for big mountain days and fully loaded adventures off the beaten track. It's the perfect choice to tackle long distance point-to-points like the Tour Divide or the Atlas Mountain Race, eating up off-road miles day after day.

    High-quality 4130 chromoly steel tubing gives that coveted steel ride feel; lively and vibration-absorbing with all the capability of modern trail geometry. Optimised strengthening gussets at the headtube and bottom bracket add stiffness where its needed without adding excess weight - this helps maintain handling when carrying heavier frame bags or panniers.

    Optimised for use with 29" tyres; soak up uneven ground and enjoy a confidence-inspiring, stable ride at higher speeds. A long wheelbase and relaxed head angle strike the perfect balance between comfortable uphill grinding and hair-raising downhill whooping and make for efficient all-day riding over rough terrain.

    Build your dream rig with a full set of expedition rack mounts, we've designed the Broken Road to be loaded up with kit and pointed towards remote places. Highly durable and ultimately repairable; steel frames can take heaps of abuse even when you're carrying everything but the kitchen sink - offering peace of mind on multi-day trips and more technical trails.

    AT A GLANCE

    SRAM Eagle 90 12-speed groupset
    Rockshox Reba RL fork
    Sonder Alpha 29" UK made wheelset
    4130 chromoly steel frame

    Why SRAM Eagle 90?

     

    First, we delivered the dream of the perfect mountain bike shift. Now we’re delivering the dream of ultimate performance for the mechanical mountain bike transmission too. 

    This is Eagle Mechanical Transmission. 

    The world’s first mechanical groupsets to use a Full Mount interface instead of a derailleur hanger. The first to let you shift anywhere, under absolute power, without compromising or compensating. It’s the world’s first mechanical system with incredibly easy “prepare, hang, tighten” installation, no adjustment screws needed. Rebuildable. Reliable. Affordable. Mechanical Transmission is the dream, delivered. 

    Hangerless Interface and Full Mount give the Eagle Transmission derailleur a remarkably strong attachment, clamping around both sides of the frame itself and eliminating the need for a hanger. This super strong connection eliminates variance and improper adjustment across frame designs. It also eliminates hanger failures and allows the derailleur to rotate backward in the case of an impact.

     

    "Please note: The above images are for illustration purposes only and may show alternative parts. The shipped bike will be built with the correct groupset and spec as outlined below.

    Features

    Trail bike geometry

    The long wheelbase combines precision and control, giving you the flexibility to adjust riding position easily. A relaxed head angle lets you cover rough ground efficiently, and strikes the perfect balance between comfortable uphill grinding and hair-raising downhill whooping.

    Traditional material. Modern Design

    High-quality 4130 chromoly steel gives you that coveted steel ride feel with all the benefits of modern trail geometry. Balance strength and stiffness with the lively, vibration absorbing nature of steel for comfortable all-day riding over rough terrain. Highly durable and ultimately repairable; steel frames can take heaps of abuse even when fully loaded with bags and kit, ideal for off-the-beaten-track adventures.

    Huge tyres. Endless grip

    Designed for optimum use with 29" wheels with clearance for 2.6" tyres. Soak up uneven ground and enjoy a confidence-inspiring, stable ride at higher speeds. Ideal for longer mile-munching day rides and multi-day off-road adventures. Broken Road can also take 27.5+ wheels with clearance for up to 3" inch tyres.

    Build your dream rig

    Triple mounts on the top and bottom of your downtube let you position your bottles high for easy reach, low to fit larger half-frame bags, or under the down tube to accommodate a custom Stingray full-frame bag. There's also a bottle mount on the seat tube and two sets of accessory mounts on the top tube, plus rear pannier mounts for those longer expeditions.

    Adjustable sliding dropouts

    Adjustable sliding dropouts give you the freedom to choose between single speed or derailleur setups. They'll also help you fine tune your setup to match your chosen wheel size and ride style.

    Internally routed cables

    Hidden cables keep the lines clean, and maintenance easy thanks to fully guided routing. Broken Road also has routing for a dropper seatpost.

    Build Spec
    Frameset
    Frame:Broken Road St Frame | 4130 Chromoly Steel
    Fork:RockShox Reba Gold RL | 100mm (travel)
    Headset:FSA Orbit C-40-ACB
    Groupset
    Shifters:SRAM Eagle 90
    Brakes:SRAM DB8
    Rotors:SRAM Centerline | 180mm (front), 160mm (rear) | 6-bolt
    Rear derailleur:SRAM Eagle 90 | 12-Speed
    Chainset:SRAM Eagle 90| 1 Chainring Guard | 165mm | 32t
    Cassette:SRAM XS-1270 Cassette | 12-Speed | 10-52t
    Chain:SRAM Eagle 70 Flat Top Chain | 12-Speed
    Bottom bracket:SRAM DUB Wide | BSA | 73mm
    Wheelset
    Wheels:Sonder Alpha I25 Trail UK Made
    Tyres:Schwalbe Nobby Nic Super Ground Addix SpeedGrip | TLE | Black | 29x2.4
    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: TBC M: TBC L: TBC XL: TBC
    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 top tube to your crotch this will give you enough seat post 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 tube410440465495
    ETT - Effective top tube589613642672
    TT - Top tube556579608637
    HT - Head tube105120135150
    HA - Head angle67676767
    SA - Seat angle73737373
    CS - Chainstay440 - 460 (adjustable)440 - 460 (adjustable)440 - 460 (adjustable)440 - 460 (adjustable)
    BB - BB drop60606060
    FO - Fork offset44-5144-5144-5144-51
    WB - Wheelbase1117 (measured at 440mm)1142 (measured at 440mm)1173 (measured at 440mm)1204 (measured at 440mm)
    RE - Reach410430455480
    SK - Stack585599613626
    Frame Spec
    Weight: S: TBC kg; M: TBC kg; L: TBC kg; XL: TBC kg
    4130 chromoly steel frame
    148 mm boost thru axle standard
    Post mount brake on chainstay, 160mm rotor as standard
    Triple bottle cage mounts on top and bottom of downtube
    Pannier rack mounts
    Internal cable routing for rear brake, rear mech and dropper seatpost.
    Not compatible with a front mech
    Headset: IS42/28.6 Top, IS52/40 Bottom
    Seatpost: 31.6 mm
    Seat tube OD: 34.9 mm
    73 mm BSA BB standard
    Max tyre width on 29": 2.6"
    Max tyre width on 27.5": 3"
    Chainline: 52mm
    Max chainring size: 36 tooth

    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.

    • Sonder Broken Road ST NX Eagle in Smoke grey
    • Sonder Broken Road ST in Forest green