Sonder Transmitter Frame Only
An alloy hard tail frame for the UK's big mountains, a blank canvas for building your dream all-mountain bike
Available on finance, from per month*
Pictures are for illustration and some components and finishing kit of this build may be different. Please refer to the detailed spec sheet before placing an order.
How To Order
All our bikes are built individually to order. If you want to change any part of the spec to suit your needs then get in touch.
Transmitter Frame [V2]
Please allow 20 working days for us to build, check, pack and despatch your Sonder.
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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!
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.
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.
Vertical compliance and lateral stiffness
The strikingly flattened top tube is the spoonful of black magic we need to make the frameset both rigid and forgiving in all the right places. Stable yet nimble, the geometry has been tweaked to give a spirited ride.
Internal cable routing
Clean lines and tidy cables thanks to fully guided internal routing.
Designed around Boost 148/110 standards and 650b 2.6/.8 tyres
Chain guide ready
Transmitter can be fitted with a chain guide. (ISCG 05 compatible).
Alloy hardtail trail bike frame
|Weight: S: 2.0 kg; M: 2.03 kg; L: 2.07 kg; XL: 2.1 kg|
|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|
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 +
|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||Sonder Transmitter, 6061-T6 Hand Welded Alumminium|
|Frame||S: 2.0 kg; M: 2.03 kg; L: 2.07 kg; XL: 2.1 kg|
|Headset not included with frame|
Swapouts and Upgrades
You can interchange Love Mud components on this build at no additional cost. So if you want a different length of stem, a particular saddle or bar then let us know in the notes section in the checkout and we'll get in touch. We also hold big stocks of SRAM, Rockshox, WTB and regular build with Shimano, Hope, Cane Creek. We'll build your Sonder with any part that suits your needs. Give us a call, with the same experienced mechanic helping throughout your build you know who to call if there's anything you want to know.
Alpine Bond Warranty
We offer a 10 year guarantee on both our handmade titanium and Reynolds steel frames. Our hand welded 6061-T6 alloy triple butted frames and carbon 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.
Used this product?Write a review
I bought the XL Alu transmitter in teal because I like a longer bike. I'm 6ft and the bike with a 35mm stem is long, but fine for myself.
The frame is a nice frame with some very minor paint issues around the head tube and the lacquer around the ISG mounts but over all very good.
The bike was built to a high spec with Pikes, Halo Vortex, Michelin 2.8 / 2.6+ tyres, Guide RE brakes and a stealth dropper. Threading the hoses was relatively simple, the frame plugs were great hover the down tube three hose plug could have had a little better clearance.
The bike is super fast, runs like it is on rails around the twisty sections, very responsive and is amazing on the brakes over a regular non plus size tyre bike. I am used to a modern carbon full sus, and this bike is amazing for a hardtail.
Minor comment is the paint could be a little harder and better but that is being a little picky.