Transmitter GX Eagle

Aggressive 27.5" hardtail

£2,199.00

Ultra-capable 27.5" hardtail - fast, lively and precise. Cut trails like a scalpel. Transmitter flows across cambe...

Transmitter GX Eagle

Photos for illustration purposes. Please check the bike spec for detailed component listings.

Transmitter GX Eagle

Aggressive 27.5" hardtail

£2,199

Aggressive 27.5" hardtail that holds the lairiest lines. SRAM GX Eagle 1x12 speed groupset, Rockshox Revelation RC fork and Sonder Alpha 27.5" wheels.

Read more

Read more

Need help choosing a bike or technical advice?


  • Open a Live Chat
  • Pop into a store 7 days a week
  • Call a Sonder Customer Hero on 01773 417006
  • Email us at support@alpkit.com


Buy Now. Get yours in 5 days.

Transmitter GX Eagle

Aggressive 27.5" hardtail

£2,199

Aggressive 27.5" hardtail that holds the lairiest lines. SRAM GX Eagle 1x12 speed groupset, Rockshox Revelation RC fork and Sonder Alpha 27.5" wheels.

Buy Now. Get yours in 5 days.

  • Please select

  • Customise

    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.

    Accessories

  • Handlebar

    • Sonder Aspect Riser 780mm

    • Sonder Aspect Riser [OEM]

      In general riser bars tend to be wider than flat bars and may have slightly more flex to give a more forgiving ride. As you go into descents and your arms drop below your knees the additional height gained on your front end will help you take control of the steep descents.

      That said you can get all bar types in a range of widths and stiffnesses and front end height can be adjusted with spacers like our Sonder Rings, so sometimes you just have to ignore the mumbojumbo and make your call on style and personal preference and there is nothing wrong with that.

    • Sonder Aspect Flat 720mm

      +£0

    • Sonder Aspect Flat [OEM]

      Flat bars help you keep the front end of your bike low, allowing you to get the weight over your front wheel when climbing and giving you more control in cornering.

      Our flats have a 5˚ rise so technically we should call them flatish, but if you really need them to be totally flat just rotate in the stem clamp!

    Saddle

    • Sonder Abode Black / 158

    • Sonder Abode [OEM]

      High density foam padding over a plastic base provides comfort and longevity. A v-shaped split at the rear of the saddle allows flex as you are riding, increasing shock absorbancy and reducing pressure on the spot between your sit bones.

      Scooped up at the back with a slight rise towards the nose the longitudinal profile provides a cupped, craddled seating position, a timeless, proven design for distance on and off the road or climbing in the mountains.

      Stainless steel rails give 50 mm of forward and back adjustment to help you find your sweet spot.

      All our Sonder bikes come with Abode fitted as standard.

    • Sonder Zone 133 / Black

      +£24.99

    • Sonder Zone [OEM]

      The Zone is designed for maximum pedalling efficiency and comfort on longer rides, whether on road or off it.

      • Chromoly rails with suspension system
      • Cut-out shape relieves pressure
      • High density foam seat for comfort

      We’ve selected a flat saddle profile that’s long enough to allow for lots of micro-adjustments to your riding position over the course of a full day on the bike. The nose width allows you to move forward over the pedals on climbs and sprints, and a tapered back enables you to get behind the saddle easily for switchback descents or technical off-road sections.

      We’ve chosen a nylon fibre saddle base to provide a stiff and stable pedalling platform for a low overall weight. This base is connected to the chromoly rails using a patented suspension system that reduces road buzz and improves comfort without compromising on support.

      High density foam stays comfortable for longer, adding to the saddle’s supportive platform. And a long central cut-out in the middle of the Zone relieves pressure on the perineum, allowing you to ride for longer.

    • Sonder Kura

      +£19.99

    • Sonder Kura [OEM]

      Adventure cycling is diverse; in the course of a single trip you can find km's of asphalt, traverse rutted grasslands, weave through thickly forest singletrack, climb loose gravel track or descend steep rocky trails.

      It is unlikely you are going to find a single saddle position for all of this terrain. With this in mind Kura has a flat longitudinal profile with a gentle lateral curvature to give an extended saddle area, allowing you to position yourself around the saddle as you move between road, downhill, and climbing.

      The honeycomb base reduces weight whilst still providing structure and support that adapts and flexes with your motion.

      Titanium rails giving 50 mm of forward and back adjustment to help you find your sweet spot. Titanium is more forgiving than steel so provides a little more comfort.

      Slightly wider than our Adobe saddle, it may provide additional comfort for riders with wider sit bones.

    Seatpost

    • X-Fusion Manic Drop Seatpost and Lever 31.6mm / 125mm

    • X-Fusion Manic Drop Seatpost and Lever

      The X-Fusion Manic Dropper has been designed to work well across cross-country, trail, all mountain and enduro riding.

      It works on a simple design. Inside you’ll find a closed cartridge that is both sealed and designed to be easily removable from the rest of the post. Simple construction aside, the action of this post feels super-smooth and silky.

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

      +£174.99

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

      The RockShox Reverb provides effortless actuation and increased reliability featuring new Vent Valve Technology.

      With reduced overall post lengths and new travel options, riders of all shapes and sizes benefit from more travel than ever before. The Reverb Stealth is just really, really reliable at simply going up and down.

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

      +£174.99

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

      The RockShox Reverb provides effortless actuation and increased reliability featuring new Vent Valve Technology.

      With reduced overall post lengths and new travel options, riders of all shapes and sizes benefit from more travel than ever before. The Reverb Stealth is just really, really reliable at simply going up and down.

  • Forks

    • Rockshox Revelation RC 27.5 / 150mm

    • Rockshox Revelation RC
    • RockShox Pike Ultimate RCT3 27.5 / 150mm

      +£239.99

    • RockShox Pike Ultimate RCT3
  • Tubes

    • WTB Inner Tube 27.5 / 2.5

    • WTB [OEM] Inner Tube

      Never one to be stranded roadside; Prudence states that you should always have a spare at hand even for your faithful tubeless set up, and who are we to argue with Prudence.

    • Tubeless Tyre Upgrade and Setup

      +£44.99

    • Tubeless Tyre Upgrade and Setup

      Go tubeless

  • Pedals

    • No Pedals (none)

    • No Pedals
    • Sonder Reko

      +£50.99

    • Sonder Reko

      The Reko are lightweight SPD pedals designed gravel riding and cross-country mountain biking over longer distances.

      The Reko's platform-free design reduces the overall weight of the pedals to 145g per pedal for lighter, faster riding. Double-sided SPD bindings are easy to clip in and out of and their compact design means they're less likely to clog with muck on filthy winter rides.

      The clip-in design improves the efficiency of your pedal strokes, saving energy on long rides and improving power transfer on climbs, and gives you more control of the back end of the bike.

    • Sonder Slingshot Black

      +£49.99

    • Sonder Slingshot

      The wide platform Slingshot pedal is designed to provide the support, control and confidence you need for a variety of riding, whether on trail, gravel or road.

      • Wide 87x90 platform made from 6061 aluminium
      • Double-sided adjustable SPD clips
      • Chromoly axle with sealed bearings

      The Slingshot's wide foot platform provides plenty of support to the foot for more comfortable pedalling over long distances, reducing hot-spots. This additional foot support also gives you greater control of the rear end of the bike on tight turns or technical trail.

      If you're using the Slingshot for mountain biking, the pedal's wide surface gives you a platform to stand on unclipped, ready to bail out if needed, on heart rate-quickening sketchy sections.

      With double-sided SPD clips and a large pedal area, the Slingshot is easy to clip in and out of in a hurry. A clipless system provides greater pedalling efficiency when climbing and more control when descending.

  • Bottle cages

    • No Bottle Cages (none)

    • No Bottle Cages
    • Sonder Sideblade Left Entry / Black

      +£4.99

    • Sonder Sideblade

      The Sideblade bottle cage not only gives your water bottle a lovely, secure hug, but its side loading system makes it easier to access when you need a drink, making staying hydrated a joy even when you've got a load of frame bags to work around!

      The Side blade is geared at letting you get to your water when you've got a bike packed up with frame bags, this means that it's also ideal for compact and full-sus frames where a standard loading bottle cage system just won't fit, you can choose which side you'd like to access your bottle by with a twist of the cage in the mount before your ride.

      Made of polycarbonate, the Sideblade is also super light and super duper tough - hooray!

    • Sonder Sideblade PAIR / Black

      +£8.99

    • Sonder Sideblade

      The Sideblade bottle cage not only gives your water bottle a lovely, secure hug, but its side loading system makes it easier to access when you need a drink, making staying hydrated a joy even when you've got a load of frame bags to work around!

      The Side blade is geared at letting you get to your water when you've got a bike packed up with frame bags, this means that it's also ideal for compact and full-sus frames where a standard loading bottle cage system just won't fit, you can choose which side you'd like to access your bottle by with a twist of the cage in the mount before your ride.

      Made of polycarbonate, the Sideblade is also super light and super duper tough - hooray!

    • Sonder Sideblade Right Entry / Black

      +£4.99

    • Sonder Sideblade

      The Sideblade bottle cage not only gives your water bottle a lovely, secure hug, but its side loading system makes it easier to access when you need a drink, making staying hydrated a joy even when you've got a load of frame bags to work around!

      The Side blade is geared at letting you get to your water when you've got a bike packed up with frame bags, this means that it's also ideal for compact and full-sus frames where a standard loading bottle cage system just won't fit, you can choose which side you'd like to access your bottle by with a twist of the cage in the mount before your ride.

      Made of polycarbonate, the Sideblade is also super light and super duper tough - hooray!

    Lights

    • No Lights (none)

    • No Lights
      -
    • Tau Front

      +£12.99

    • Tau

      Bright enough to blind you when you turn it on so you can be sure that other road users will also see you.

      Tau+ front safety light offers 65 lumens of 270° ultra wide lighting with 10 m beam distance.

      Tau- rear safety light will shed out 20 lumens of 270° ultra wide lighting from the red COB LED strip

      Tau is visible from up to 100 m and is water resistant so they will happily brighten your way even on the gloomiest of days and is impact resistant from 1 m.

      Switch protection prevents any unwanted battery usage and battery capacity indicator will let you know when the juice is running low.

      Only 22g including the USB rechargeable battery and LED lights that never need replacing will keep you light and bright for years to come!

      Each Tau light comes with a bigger and a smaller strap to fit with most bars/seat posts and if you need it even bigger, just lace the bands together to make a larger loop.

    • Phase / 400

      +£19.99

    • Phase / 400

      The Phase 400 is our lightweight, yet durable, rechargeable bike light for a midweek evening blast on the bike.

      • 5 lighting modes and a 200m beam distance
      • Versatile: can be attached to handlebar, helmet or cockpit mount
      • Rechargeable Li-ion battery, with micro-USB cable

      Say hello to our sleek, new bike light range: they’re light, durable and rechargeable (and they say hi back). At just 123g, the Phase 400 is the final tool you need to make the most of evening rides. With 400 lumens and >200m beam distance, a Phase bike light will keep you company and confident on your dusk rides.

      The Phase 400 has been made with the roadie in mind: whether you’re on a family ride, a mid-week spin or your daily commute to work, you’re going to need an all-round bike light for the incoming dark evenings. But don’t worry if you end up on a canal path or a gravel track, this rechargeable light will suit you just fine for a short jaunt off-road.

      Flick between 5 lighting modes: high, mid, low, SOS and strobe. The Phase 400 has a maximum battery life of 8 hours and 20 minutes in low mode, so in the case of a surprise night-time emergency, you’re sorted. The 80-degree beam angle ensures you can see and be seen.

      We’ve added in some nifty features, including memory lighting. The light will remember the most recently used mode and default to it the next time you head out on your bike. The Phase 400 is compatible with a handlebar mount (included), a cockpit mount and a helmet mount. It also conveniently charges with a versatile micro-USB cable.

    • Phase / 800

      +£29.99

    • Phase / 800

      As the Phase 800 is especially designed for easy-going gravel paths, canals, and short singletrack trails, it is perfectly suited to the gravel rider. The 85-degree beam angle means you can see the journey ahead, as well as be seen by oncoming traffic or the local gravel gang. 

      • >200m beam distance for dusk riding
      • Up to 18 hours of battery life
      • Memory lighting: the light defaults to the most recently used mode upon restarting

      The light boasts 5 modes: high, mid, low, pulse and strobe. In high mode, the Phase 800 lasts 1hr20mins – just enough time for your local mid-week, pre-dinner loop. On the other end of the scale, the 100-lumen pulse mode lasts over 18 hours! No matter your journey, Phase 800 can adapt to your trail.

      It’s got good memory too: the Phase 800 remembers your most recently used mode and defaults to it the next time you turn it on. Once you’ve finished shredding up the local gravel, don’t forget to recharge your light. It just needs a handy micro-USB cable to be ready for when you’re next raring to ride.

    • Boson

      +£29.99

    • Boson

      A powerful bike light with tough aluminium shell suitable for mountain biking and road biking. Boson is small and compact with a Li-ion rechargeable battery and a Micro USB port.

      Boson has 5 lighting modes which are cycled through (excuse the pun) with a single illuminated switch. High power pumps out 850 lumens making even the darkest commute a tunnel of light. Turn it down to medium power and you still have 320 lumens to play with - more than enough for negotiating un-lit cycle ways and paths.

      If you want to be seen rather than see where you are going switch out to the 6 or 3 Hz flashing modes. Bright enough to be seen even during daylight hours, it really comes into its own during the hours of twilight and dusk.

      A mounting bracket is included (fits 18 - 36 mm bars and no special tools needed). Once attached Boson can be fixed or removed with ease. It allows 360 degree rotation for complete control over your beam of light; the textured lens projects a smooth wide beam ideal for nocturnal riding.

      Note: Boson doesn’t take a "standard" 18650 battery - the battery has both anode and cathode at the same end. Do not switch on Boson during charging as it could damage the battery.

    • Hadron

      +£69.99

    • Hadron

      At a whopping 1,800 lumens, the Hadron shines like two twin suns on the front of your bars, allowing you to ride at daytime speeds long after the light fails.

      • Max power of 1,800 lumens with a wide beam angle
      • 6 different lighting modes to tailor to your riding
      • Remote control for swapping between modes at speed

      The Hadron uses twin Cree LEDs to provide a wide, bright beam that stretches well over 200m. This provides a ridiculous amount of night-time visibility so you can tackle tight and twisty singletrack at speed. It also comes with an optional remote control, allowing you to easily swap between lighting modes without needing to take your hands off the brake levers.


      With 6 different lighting modes, the Hadron’s brightness can be effectively tailored to your ride length, terrain and light levels. The lowest brightness Pulse mode runs for a massive 50 hours If you need to save battery on the roads or smoother sections. Plus, the twin bulbs are much more energy efficient than single bulb set-ups.


      The Hadron is housed in a durable 6063 alloy casing to protect your light from crash damage and an IPX6 rating is sufficiently waterproof for all-weather riding. An output jack on the Hadron means you can also use its large 6,700mAh lithium ion battery to charge your GPS or phone if you find yourself out of juice on mid-trip.

    Mudguards

    • No Mudguards (none)

    • No Mudguards
    • Sonder Fender Front MTB

      +£4.99

    • Sonder Fender

      The Sonder Front Fender protects you from excessive mud splatter on wet, mucky trails. These lightweight plastic mudguards don’t require any special fixings on your bike and can be strapped straight onto your forks with 4 cable ties (supplied).

      Made from durable polypropylene, if the Fender does meet its end, it can be easily recycled by most councils or at your local recycling centres.

Initial Price
£2,199
Frame
Transmitter GX Eagle
Size
Colour
Extras
£0
Total Price
£2,199
Description

Ultra-capable 27.5" hardtail - fast, lively and precise. Cut trails like a scalpel. Transmitter flows across cambers, roots, rocks and ruts. Get speed, agility and masses of fun with a long wheelbase, long trail and long reach. Then ask why anyone buys full suspension.

At a glance

  • Sram GX Eagle 12-speed groupset
  • Rockshox Revelation RC fork
  • Sonder Alpha 27.5" wheelset
  • 6061 aluminium frame
  • X-Fusion Manic dropper seatpost

SRAM GX Eagle

SRAM Eagle drivetrains are designed, engineered and manufactured to work as complete drivetrain systems. Its 1x drivetrain is built to be lightweight, strong and intuitive, with the gear range to ride on any terrain.

..Read more

GX Eagle provides the best choice of materials and finish options and remains fully compatible with SRAMs Eagle groupset.

Sonder Alpha 27.5"

Alphas are our performance 27.5" wheelset for big hits and big tyres. Whether you're riding down Top Chief at Fort William or riding the black routes at Bike Park Wales, Alphas will consistently spin up to speed and keep rolling to help you ride with fluid precision over the trails.

Alpha's have a boost hub for strength and stiffness and wide rims to improve tyre performance. They're built for abuse with sealed bearings and are tubeless ready.

    Read less
    Features

    Progressive geometry

    Long reach, low bottom bracket and slack 65° head angle for bucket loads of confidence. 425mm short chainstays for agility and insane acceleration out of turns.

    Hand welded 6061-T6 triple butted frameset

    Not all tubes are equal. Transmitter uses tube walls of different thicknesses to get material where it is needed and save weight where it isn’t.

    Internal cable routing

    Clean lines and tidy cables thanks to fully guided internal routing.

    Huge tyres. Endless grip.

    27.5" 2.6/2.8" tyres. Designed around Boost 148/110 standards.

    Features built for trails

    Compatible with a dropper seatpost so even the most sheepish riders can tackle those steep sections head on like a pro. ​Transmitter can aslo be fitted with a chain guide. (ISCG 05 compatible).

    Loads of travel

    150mm of suspension floats you over the roughest and rootiest lines.

    Build Spec
    Frameset
    Frame:Transmitter Frame | 6061 aluminium
    Fork:RockShox Revelation RC | 150mm (travel)
    Headset:FSA Orbit C-40-ACB
    Groupset
    Shifters:SRAM GX Eagle Trigger | 1x | 12-speed
    Brakes:Sram Code R | Hydraulic | Direct mount
    Rotors:Avid Centreline | 180mm (front), 160mm (rear) | 6-bolt
    Rear derailleur:SRAM GX Eagle | Long cage | 12-speed
    Chainset:SRAM GX Eagle DUB | 170mm | 32t
    Cassette:SRAM XG1275 Eagle | 10-52t | 12-speed
    Chain:SRAM GX Eagle | 12-speed
    Bottom bracket:SRAM DUB | BSA | 73mm
    Wheelset
    Wheels:Love Mud Hobo 650b Boost Wheelset | XD
    Front tyre:WTB Vigilante | Comp | 27.5 x 2.8"
    Rear tyre:WTB Trail Boss | Comp | 27.5 x 2.6"
    Tubes:Vittoria | 27.5 x 1.95-2.50" | Presta
    Finishing kit
    Handlebars:Sonder Aspect Riser | 78cm
    Stem:Sonder Piskie | 35mm
    Seatpost:X-Fusion Manic | 31.6mm | 150mm (drop)
    Saddle:Sonder Abode | 158mm | Black
    Grips:Sonder Clutch | Black
    Weight
    Frame:S: 1.97kg; M: 2.0kg; L: 2.1kg; XL: 2.14kg
    Build:S: 12.4kg; M: 12.65kg; L: 13.8kg; XL: 13.9kg
    Pedals not included with full builds
    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 +

    Transmitter

    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: 2.0kg; M: 2.03kg; L: 2.07kg; XL: 2.1kg
    Alloy trail frame with integrated tapered headset for a clean, low front end
    Hand welded 6061-T6 triple butted frameset
    High-quality extended welds
    Optimised for 150 mm (540 mm axle to crown) suspension forks
    Internally routed cables
    Boost 148 rear spacing to allow huge tyre clearance while benefitting from a stronger wheel
    Threaded 73 mm BSA BB shell for no-creak assembly
    Chainstay mounted disc brake for clean lines and damage protection
    Reverb Stealth 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
    Reviews
    Kudos
    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.

    Author:

    Guy Kesteven

    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.

    Author:

    Alan Muldoon

    Off Road.cc 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

    Author: Rachael Gurney
    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.

    Author:

    Andi Sykes