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Sonder Transmitter All mountain, any mountain; a bike to take to the mountains with the skills you have developed on the trail.

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 trails 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


Designed for big days in the mountains or throwing around your local trail centre, the all mountain bike defined. Transmitter is kind of like a friendly hooligan: aggressive and fast but fun and forgiving. It's happy to help carry your load for further afield adventures. 6061 aluminium frame with 650b+ boost wheelsets.

Transmitter frame only is £300 with complete bikes from £999.

Contact us to arrange a demo at our Nottingham factory store or test ride over a weekend for £39 a day plus £30 delivery and return shipping

Transmitter; a perfectly poised 650b+ hardtail mountain bike with balance up and down, across cambers and ruts, roots and rocks. Transmitter delivers on speed, pace and adrenalin fuelled adventures.

Transmitter can take on those 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 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 rode and enjoyed. Easy to ride and 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.

Boost ready

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).

Wheel compatibility

​Transmitter is designed to run with 650b / 650b+ tyres at both ends.

Hide features

Frame spec

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
Integrated headset
Chainstay mounted disc brake for clean lines and damage protection
Adventure cage compatible downtube mount
Reverb Stealth port
EN 14766 compliant
Weight (g): S: 1902, M: , L: 1932

Sizing

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.

Small
Riders between 5ft 3in and 5ft 8in
Medium
Riders between 5ft 6in and 5ft 11in
Large
Riders between 5ft 9in and 6ft 3in
Size Small Medium Large
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

Build Options

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 their componentry to work.

Transmitter comes as frame only, SRAM NX1, SRAM GX1 and SRAM XX1 Eagle builds.

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.

They are built to order so are fully customizable – if you want a different fork, 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.

Faqs

Support

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.

Kudos

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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.

Read on Bike Radar

Sonder Transmitter First Ride Review Outdoors Magazine

Jon Doran test rides the Sonder Transmitter.

Read on Outdoors Magic

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BikeRadar Check Out Sonder

Bike Radar come by the Sonder stand at the London Bike Show

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US BikeRumour write up our first Sonder bikes

Read on BikeRumour

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Read on What Mountain Bike

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Single track Review Sonder

Singletrack came by Sonder at the London Bike Show

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