Transmitter Frame

[Bikes] Frames & Forks


At A Glance
  • Frame: Hand welded 6061-T6 triple butted frameset.
  • Designed around a 150 mm travel fork.

The signature flattened top tube gives...

  • Frame: Hand welded 6061-T6 triple butted frameset.
  • Designed around a 150 mm travel fork.
  • The signature flattened top tube gives..."/>

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    Transmitter Frame [Bikes] Frames & Forks


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    This item is on pre-order. It is due to arrive in stock soon and should be available from soon. We'll keep you up-to-date with your order progress and despatch as soon as it is available.

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    At A Glance
    • Frame: Hand welded 6061-T6 triple butted frameset.
    • Designed around a 150 mm travel fork.

    The signature flattened top tube gives vertical compliance but lateral stiffness - it really is an all mountain bike. That long wheelbase combined with the slack front end, size specific chainstays and a lowered BB give stability and control through the rowdiest of terrain.

    Transmitter is designed around Boost 148/110 standards and 650b 2.6/.8 tyres, and optimised for 1x groupsets. The geometry and extra grip from those big tyres means even the most sheepish rider will tackle those steep sections, up and down, like a pro.

    Transmitter frames now feature internal cable routing through the downtube, integrated headsets, through-axle hubs, refined dropouts, butted tubes and smooth welds (and 3 shiny new colours).

    Transmitter is a bike that just fits in with hard riding. This new version is still the fun trail bike it’s always been, and will still be a perfect partner for multi-day epics or short and fast trail centre blasts, but the changes we’ve made have raised the Transmitter’s limits, so you’ll be able to push the bike harder than ever before!

    Bike Radar Transmitter Review

    A great blend of swaggering, speed-breeding stability sharpened up by instantly reactive, traction-chasing, short stem steering .... Alpkit resets expectations with its new hardtail.

    Read the full review here.

    MBR Review the Sonder Transmitter

    "With slackest head angle, longest reach and shortest stem, the Sonder Transmitter is built for bombing, inspiring confidence to fully attack descents."

    Read the full review here.

    Off Review Sonder Transmitter NX Eagle

    The Transmitter is a playful, all-mountain rig with some hooligan tendencies. It suits all manners of riding from trail centres to more natural riding to exploring wild bridleways. If you want a ‘one-hardtail-does-it-all’ then the Transmitter will do that in spades.

    Read the full review here

    Singletrack take a first look at the new Transmitter

    If you’re a numbers nerd or geometry geek you’ll recognise that while these are significant changes, they aren’t all that extreme and should result in a well rounded riding machine rather than something that only rides in one direction.

    Read the full review here.

    Sonder Transmitter Scores 9/10 in MBR's Hardtail of the Year Test

    A bike that descends with complete confidence

    Read the full review here.

    What Mountain Bike 5* Transmitter

    Genuine game changer .... crazily capable, radical geometry, hardcore hardtail that maximises the control and speed ... outrageously good value ... reset our definition of cost-effective bike performance .... very very nearly saw Sonder take the overall win.

    Geometry and 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:
    Riders between 5ft 2in and 5ft 7in
    Riders between 5ft 6in and 5ft 10in
    Riders between 5ft 9in and 6ft 2in
    Riders of 6ft 2in +


    Size Small Medium Large X-Large
    ST - Seat tube 410 440 470 485
    TT - Top tube 581 603 623 647
    HT - Head tube 105 115 115 130
    HA - Head angle 65 65 65 65
    SA - Seat angle 75 75 75 75
    CS - Chainstay 425 425 427.5 430
    BB - BB drop 52 52 52 52
    FO - Fork offset 46 46 46 46
    WB - Wheelbase 1144 1169 1191 1220
    SO - Stand over 750 768 783 796
    RE - Reach 422 442.5 462.5 482.5
    SK - Stack 589 598 598 612
    Frame Spec
    Weight: S: 1.99kg; M: 2.01kg; L: 2.07kg; XL: 2.17kg
    Carbon trail frame compatible with integrated tapered headset for a clean, low front end
    Optimised for 150 mm suspension forks
    Fully guided internal routing
    Painted or raw carbon finish
    Boost 148 rear spacing for wheel strength and optimal chainline
    Threaded 73 mm BSA BB shell for no-creak assembly
    Chainstay mounted disc brake for clean lines and damage protection
    Bottle cage mount
    Dropper seat post port
    EN 14766 compliant
    The Transmitter frame is suited to a low profile 2.8” tyre or aggressive 2.6” tyres, some larger 2.8”s may rub the chainstays in use