Sonder Transmitter Long, low and slack plus-sized hardtail. A hooligan of a bike for trails centres, singletrack and UKs big mountains
Sonder Transmitter frame only
The bike for the UKs big rideable mountains - an alloy 650b+ boost compatible hardtail trail frame. Buy the frame only - a blank canvas - and build your dream all mountain bike
Sonder Transmitter SRAM NX1 Sektor
All mountain hardtail trail bike designed for trail centres and mountains with SRAM NX1, 1 x 11 groupset, Rockshox Sector fork and 650b+ boost WTB Trail Blazer wheels.
Sonder Transmitter SRAM NX1 Yari
All mountain hardtail trails bike designed for trail centres and mountains with SRAM NX1, 1 x 11 groupset, Rockshox Yari fork and 650b+ boost WTB Trail Blazer wheels.
Sonder Transmitter SRAM GX1 Yari
For fast ascents of UKs highest mountains take a trails bike to the next level with SRAM GX1 1x11 groupset, Reverb dropper, Yari fork and 650b+ boost 2.8" wheels with WTB Trailblazer tyres
Sonder Transmitter SRAM GX1 Pike
Top of the range Transmitter with a Pike fork, Reverb seatpost, 650b+ boost wheelset, pure SRAM GX1 1x11 groupset and WTB Trail Blazer tyres. There aren't the words in the English language that can begin to express how good this bike is.
Sonder Transmitter SRAM XX1 Eagle Pike
The ultimate Transmitter with Srams top of the range XX1 Eagle 1 x 12 groupset, RockShox Pike fork, Reverb seatpost, 650b+ Love Mud Rumpus boost wheelset and WTB tyres. This is a serious package designed for hard riding in the mountains or around trail centres.
Sonder Transmitter frame and Rumpus wheelset
Build up your own trail bike with this Transmitter alloy frame and 650b+ wheelset
Long low and slack plus sized hardtail. A hooligan of a bike for trail centres, singletrack and the UKs big mountain. Transmitter is aggressive and fast but fun and forgiving. 6061 aluminium frame with 650b+ boost wheelsets.
Transmitter frame only is £300 with complete bikes from £999.
Contact us to arrange a demo at one of our stores or test ride over a weekend for £39 a day plus £30 delivery and return shipping
Transmitter; adrenaline fuellede 650b+ hardtail mountain bike with balance up and down, across cambers and ruts, roots and rocks. Transmitter delivers on speed, pace and plus sized adventures.
Transmitter can take on mountain trails guns blazing; Snowdon on a sunny Autumn day or the Colorado singletrack with killer views and grinders where you won’t get out the grannie-gear. Yet, you can still take a day at Bike Park Wales or whip around Cannock Chase on a Sunday afternoon with great agility.
Striking flattened top tube gives vertical compliance but lateral stiffness; an all mountain bike that gives the stability of a fat-bike shrunk in the wash with the nimbleness of a trail bike. Transmitter is compatible with Boost 148/110 standards and 650b+ tyres, even the most sheepish rider will tackle those steep sections like a pro.
Clinically created, Transmitter frames feature external bolted cable solutions, integrated headsets, through-axle hubs, 1 x 10 gearing, formed butted smooth-welded tubing and as you would expect - handling beyond compare. They’re bikes that just fit in with hard riding. But mostly, they are to be ridden and enjoyed. Easy to ride and easy to maintain. And funner. Much funner.
Hand welded 6061-T6 triple butted frameset
Not all tubes are equal, Transmitter uses different thickness of tube walls to get material where it is needed and save weight where it isn’t. The alluring geometry is finished off with a gun-metal anodising which exudes real grit and innate fervour.
Dropper seatpost ready
The Transmitter frame is compatible with a dropper seatpost so even the most sheepish riders can tackle those steep sections head on like a pro.
Tapered head tube
Who would ever choose to be a head tube? You might as well step into the ring with Mike Tyson. It is a critical junction point where forces are distributed around the frame and steering precision is won or lost. Transmitter has a wide tapered head tube to house your internal bearings which allows these forces to be distributed more evenly while improving steering over broken ground.
Transmitter is designed around the new Boost standard and corresponding 52 mm chainline to give better steering stiffness and increased wheel support.
Chain guide ready
Transmitter can be fitted with a chain guide. (ISCG 05 compatible).
Transmitter is designed to run with 650b / 650b+ tyres at both ends.
Alloy hard trail trails frame
|Frame Key Features|
|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 120 mm suspension forks|
|Bolted cable guides for precision cable placement and retention|
|Durable anodised finish|
|Boost148 rear spacing for wheel strength and optimal chainline|
|Combination 120 mm 51 mm offset boost or 130 mm 650b fork geometry|
|Threaded 73 mm BSA BB shell for no-creak assembly|
|Chainstay mounted disc brake for clean lines and damage protection|
|Adventure cage compatible downtube mount|
|Reverb Stealth port|
|EN 14766 compliant|
It is important to get the right size bike, if the bike fits you well 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.
- Riders between 5ft 3in and 5ft 8in
- Riders between 5ft 6in and 5ft 11in
- Riders between 5ft 9in and 6ft 3in
|ST - Seat tube||395||445||470||490|
|TT - Top tube||593||622||642||659|
|HT - Head tube||110||120||120||130|
|HA - Head angle||65||65||65||65|
|SA - Seat angle||73||73||73||73|
|CS - Chainstay||425||425||425||425|
|BB - BB drop||42||42||42||42|
|FO - Fork offset||46/51||46/51||46/51||46/51|
|WB - Wheelbase||1139||1163||1183||1208|
|SO - Stand over||740||770||790||810|
|RE - Reach||410||430||450||470|
|SK - Stack||599||608||608||618|
|ST - Seat tube||410||467||505|
|TT - Top tube||595||615||631|
|HT - Head tube||120||120||120|
|HA - Head angle||65||65||65|
|SA - Seat angle||72.5||72.5||73|
|CS - Chainstay||425||425||425|
|BB - BB drop||42||42||42|
|FO - Fork offset||42/51||42/51||42/51|
|WB - Wheelbase||1130||1150||1175|
|SO - Stand over||748||773||796|
|RE - Reach||406||426||446|
|SK - Stack||610||610||610|
We minimise the chopping and changing that makes so many other bikes a smorgasbord of bike parts. We spec Transmitter with pure NX1, GX1 or XX1 Eagle ... and take pride in offering SRAM just as they designed and tested to work.
Check out the specs on the individual product pages. They are built to order and are fully customizable – if you want a different stem length, saddle, wheelset, bar or gear ratio then let us know. If you’ve a dream build in mind then please get in touch and we’ll do our best to source the parts you want.
All our bikes are built in-house, checked and signed off by Cytech trained mechanics before being despatched to you in a custom-made bike box.
- What wheel sizes can Transmitter take?
- What pressure should I run my Trailblazers at?
- What are builds and groupsets?
- Are Sonder available outside the UK?
- Try Before Your Buy - Sonder Demo Bikes
- Why have Alpkit designed their own bikes?
Alpine Bond Warranty
Our titanium frames are handmade and come with a 10 year frame warranty. Our hand welded 6061-T6 alloy triple butted frames come with a 5 year manufacturing defect warranty. All our bikes are built, checked and signed off by Cytech trained mechanics before being despatched to you in a custom-made bike box.
Sonder - a new bike brand from British outdoors experts Alpkit
Matt Orton previews the Sonder range at the Alpkit Big Shakeout festival and picks up on the strong underlying emphasis of equipment for adventure.
Sonder Transmitter First Ride Review Outdoors Magazine
Jon Doran test rides the Sonder Transmitter.
BikeRadar Check Out Sonder
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Bike Rumour review Sonder
US BikeRumour write up our first Sonder bikes
What Mountain Bike 5* Transmitter
Pink Bike Checks Out Sonder
PinkBike visit us at the London Bike Show
Single track Review Sonder
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