Sonder Cahoot Titanium Custom Frame
Share the joys of riding together with a fully custom titanium mountain bike tandem frame bespoke to your own requirements. The process takes approximately 3 months from initial conversation to frame delivery. Contact us to test ride our medium Cahoot demo tandem
£2999.00 Was: £3299.00
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.
Please allow 20 working days for us to build, check, pack and despatch your Sonder.
Alternative payment options
Guide to paying with Cycle to Work Schemes

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Alpkit Ltd acts as a credit intermediary and offer credit products provided exclusively by Klarna Bank AB (publ). Klarna Bank AB (publ) is Authorised by the Swedish Financial Services Authority (Finansinspektionen) and is subject to limited regulation by the Financial Conduct Authority. Details about the extent of our regulation by the Financial Conduct Authority are available from us on request. Finance is only available to permanent UK residents aged >18, subject to status, terms and conditions apply. Registered office: Sveavägen 46, 111 34 Stockholm, Sweden. Corporation ID number: 556737-0431. |
At a glance
- Completely Custom Titanium Tandem Mountain Bike Frame
- Hand welded titanium frame
- Rear rack mounts
- Adjustable dropouts allow 650b+, 29 in or large section 700c wheels and either singlespeed, derailleur or internal hub gears
- Clinically created geometries enhance riding and load capacity
- 10 year guarantee
Ride together no matter the road you travel. Tackle steep singletrack, flow down downhills and ride fully loaded on tarmac. A capable bespoke hand made tandem mountain bike designed for your size, geometry and specification. Made from aeronautical grade titanium and with a 10 year guarantee.
Watch the Mountain Journal Short featuring Rich and Tom Siepp and their Sonder Cahoot.
Expedition geometry
Sharing the geometry of all our expedition frames Cahoot offers performance and comfort. Fast and responsive with a lightweight titanium frame construction, suspension forks, boost wheelset and an extended head tube.

Lightness and speed combined with comfort and stability
Wide, flat aeronautical grade titanium hand welded tubing and suspension fork for enhanced shock absorbency. Built for long days in the saddle.

Wheel compatibility
Clearance for tyres and wheels up to 650b+ x 3.0” or 29” x 2.4”

Frame spec
Titanium is lightweight, strong and durable make it an ideal construction material for bike frames. No other material is as durable, lasts as long, or looks as good. Our frames are handmade and come with a 10 year frame warranty
3Al/ 2.5V Aeronautical Grade Hand Welded Titanium Frame |
Full custom frame Suspension Fork Compatible (if you want!) |
Headset: ZS44/EC44 |
Disk brake only |
Compatible with 29er with 2.4” tyres and 650b+ Boost hubs |
Build | Frame | ||
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Frameset | |||
Frame | Cahoot Custom Tandem Frame 3Al/ 2.5V Aeronautical Grade, Hand Welded Titanium | ||
Weight (g) | |||
Frame only | M: 4kg |
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.
Faqs
Support
- Visit the Support Centre
- Ring us on 0044 1773 417 007
- Write to us here
- Drop by our Factory Store : Open Mon-Fri 10am to 4pm or visit our stores in Ambleside and Hathersage which are also open at weekends.
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.