Our site works best with JavaScript enabled.

Sonder Santiago Audax slaying, winter riding, multi-month Reynolds 631 steel tourer

Our take on the classic steel road tourer: smooth, reliable and assured. Built around a Reynolds 631 steel frame, Santiago is the definition of dependable. Capable of being battered, fitted with mudguards as a winter workhorse, ridden all day in comfort as an audax slayer or loaded with racks and panniers and pedalled around the world. Whatever your endeavour, Santiago has your back.

Sonder Santiago Apex1 Flat Bar

Flat-barred single ring setup for low maintenance riding, geared up for going far with the comfort of a flat bar

£999.00 Was: £1099.00

Sonder Santiago Rival1 Mechanical

The smooth feel of Rival with the simplicity of a 1x chainset

£1149.00 Was: £1299.00

Sonder Santiago Rival22 Hydraulic

A 34 - 50 road compact setup with with an 11-36 cassette. The classic steel road bike, winter ride and audax slayer

£1399.00 Was: £1549.00

Sonder Santiago Rival22 Touring

Steel tourer with FSA 32/48 chainset with an 11-36 cassette to give you even lower gear ratios for climbing fully loaded on multi-month adventures

£1149.00 Was: £1299.00

Sonder Santiago Frame And Fork

Build up your dream round-the-world tourer with the Santiago steel frame and fork

£449.00 Was: £499.00

Reynolds 631 is the construction material for tourers because of its classic smooth feel, long life and ease of maintenance.

Santiago knows its heritage; cold-worked, air-hardened steel is steeped in the history of long-distance riding. But with bang-up-to-date geometry, Santiago has a refreshing feel that you know will be good for years to come: 450 mm chainstays, 1.1 m wheelbase, 71 degree head angle, a fork rake of 55 and generous tyre clearance. This makes for a truly comfortable, fast, assured bike, both in its own right (audax slaying, winter riding) or when racked up and loaded for multi-month travels.

Santiago is a weight carrying beast, capable of taking over 100 litres of storage with full traditional rack and guard mounts and three sets of bottle cage bottles for creating your own rig.

Gear ratio comes in two standard forms based around a compact setup, with a regular 50 - 34 tooth cog upfront and 11-32 cassette at the back for riding on its own, and capable of 11-40 cassette to give a super low ratio (from 21” to 120”) when loaded up.

As the Young Offenders said ‘there are two things you need for an adventure: a treasure map and a friend that’s dumb enough to go with you’. Meet Santiago, your friend for epic journeys that aren’t meant to end.

Traditional bike, contemporary geometry

Santiago’s takes classic road bike geometry as a starting point, with a longer wheelbase and higher stack height for a more comfortable riding position and assured ride, whether you’re travelling light or fully loaded up.

Generous tyre clearance

​Clearance for up to 650b x 47 mm or 700c x 37 mm tyres that make your ride more comfortable and give better grip on the bitumen as you corner.

Full traditional mounts

With full rack and guard mountains, 3 sets of bottle cage bosses and extra cage mounts on the fork, Santiago can handle being fully loaded up.​

Hide features

Frame spec

Durable, comfortable, Reynolds steel frame.

Weight (kg): 3.5kg frame and fork or 12kg fully built
Reynolds 631 steel, cold worked, air hardened seat tube, top tube and down tube
Chromoly fork and read frame
68 mm BSA threaded BB
Straight headtube (EC34) to fit 1 1/8” fork
100 mm front, 135 mm rear QR dropouts
Standard 160 mm post mount disc brakes
Full rack/guard mounts
Tyre clearance for 700 x 37 mm, 650b x 47 mm tyres


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 6ft 2in and over

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.

Size Small Medium Large X-Large
ST - Seat tube 470 500 530 570
TT - Top tube 543 563 584 605
HT - Head tube 120 140 160 180
HA - Head angle 71 71 71 71
SA - Seat angle 73 73 72.5 72.5
CS - Chainstay 450 450 450 450
BB - BB drop 73 73 73 73
FO - Fork offset 55 55 55 55
WB - Wheelbase 1042 1063 1085 1106
SO - Stand over TBC TBC TBC TBC
RE - Reach 370 385 400 415
SK - Stack 566 585 604 623
Fork A-C 395 395 395 395

Custom Options

There’s something special about building your own unique Santiago. With a wide range of groupsets available we can mix and match compact or touring chainsets with wide ratio cassettes to give the gearing ratios you want. Multiple tyre options are available with up to 47mm tyres.

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.

Click here for more information



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.


Sonder Santiago makes The Guardian’s ‘Bicycle of the Week’

Read on The Guardian

Advntr: Close Up with the Sonder Santiago

Read on advntr.cc

Sonder Santiago Reviewed by Road.cc

Read on Road.cc

Explore other content related to Sonder Bikes on our site.
22 01 2020 - Daring Deeds

Strathpuffer 2020
Our summary of the 2020 edition of Strathpuffer

16 01 2020 - Daring Deeds

No Sleep Till Sunday
Throwback to Strathpuffer 2018

05 12 2019 - Daring Deeds

Testing New Frontiers
Join us for a spin in the Peak District

28 11 2019 - Daring Deeds

Second City Divide Part 1
Alpkiteer Steve Bate takes on the Second City Divide

21 11 2019 - Daring Deeds

Adventure Training at Alpkit
Proper training in the outdoors

14 11 2019 - News

Sonder Winter Gravel Series
Keep your legs moving over winter with Sonder

07 06 2019 - News

Sonder Storybook 2019 Comp Now Open
Release your inner Dervla Murphy

19 05 2019 - Daring Deeds

Body, Bike, Mind and Me: Part 2
Exploring mindfulness on the Highland Trail 550

14 05 2019 - Daring Deeds

Body, Bike, Mind and Me
Exploring mindfulness on the Highland Trail 550

10 05 2019 - Daring Deeds

Reccying The Dales Divide
The first one round the Dales Divide

25 04 2019 - Daring Deeds

Lisbon to Malaga: A Bikepacking Adventure
Bikepacking from Lisbon to Malaga

17 04 2019 - Daring Deeds

The Beast
A custom Titanium Fat Bike care of Sonder Bikes