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 for multi-month adventures.
At a Glance
Reynolds 631 steel framed road bike with compact road set up:
..Read more- Frame: Sonder Santiago frame, Reynolds 631 steel
- Fork: Sonder Santiago frame, Cromoly steel
- Groupset: Shimano GRX2 / 2 x 11 / 11-32
- Brakes: SRAM Rival22 hydraulic disc brakes
- Wheelset: Sonder Nova 700c
- Tyres: WTB All Terrain / Comp / 700 / 35
- Tyre clearance: up to 650b x 47 mm or 700c x 37 mm
- Bolt-through axles with 12 x 100mm up front and 12 x 142mm at the rear
- Full rack and guard mounts, 3 sets of bottle cage bosses
GRX2
The 2 x 11 gearing, with a whopping 11 – 32t cassette, offers a gear range that is wide enough to cope with any terrain, opening up the alpine passes to mere mortals with enough at the top end to cruise up on the flat. 2x builds give a wide gear range and keep the jumps between gears small.
Read lessSizing
Generally we recommend:- Small
- Riders between 5ft 2in and 5ft 7in
- Medium
- Riders between 5ft 6in and 5ft 10in
- Large
- Riders between 5ft 9in and 6ft 2in
- X-Large
- Riders 6ft 2in and over

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 |
Build | Santiago GRX2 |
---|---|
Frameset | |
Frame: | Santiago Frame |
Fork: | Santiago Fork |
Headset: | FSA Orbit MX Headset / 1.125 |
Group Set | |
Left Brake: | Shimano GRX [RX-600/RX400] Shifters / Hydraulic / Left / 2x / Flat |
Right Brake: | Shimano GRX [RX-600/RX400] Shifters / Hydraulic / Right / 11x / Flat |
Calipers: | SRAM Rival Flat-Mount Hydraulic Calipers |
Rotors: | Shimano RT66 Rotor / 6 Bolt / 160mm |
Rear Mech: | Shimano GRX RX810 Rear Derailleur / 11 / Double |
Chainset: | Shimano GRX Crankset [RX600 HT] / 2x / 172.5mm / 46 30t |
Bottom Bracket: | Shimano RS500 Bottom Bracket |
Chain: | Shimano HG601 Chain / 11 / 118 Links |
Cassette: | Shimano GRX M7000 Cassette / 11 / 11-32 |
Finishing Kit | |
Stem: | Sonder Storc / 100mm |
Seatpost: | Sonder Seatpost / 27.2mm / 400mm |
Saddle: | Sonder Abode / 138 / Black |
Tape/Grips: | Sonder Reels / Black |
Handlebar: | Love Mud Hurricane / 420mm |
Wheelset | |
Wheels: | Sonder Nova 700c Wheelset / Shimano |
Tyres: | WTB All Terrain / Comp / 700 / 35 |
Tubes: | WTB Inner Tube / 700 / 38-45 |
Weight | |
Frame & Fork: | S: 3.3kg; M: 3.5kg; L: 3.7kg; XL: 3.9kg |
Built (approx): | S: 11.7kg; M: 11.9kg; L:12.1kg; XL: 12.3kg |
Pedals not included with full builds |
Durable, comfortable, Reynolds steel frame
Weight (Frame and Fork): S: 3.3kg; M: 3.5kg; L: 3.7kg; XL: 3.9kg |
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, 142 mm rear bolt-through dropouts |
Standard 160 mm post mount disc brakes |
Full rack/guard mounts |
Tyre clearance for 700 x 37 mm, 650b x 47 mm tyres |
Reynolds 631 steel tubing
Durable, smooth and assured on those multi-month trips Reynolds 631 steel is an excellent material for round-the-world touring where you’re completely dependent on your bike. We’d be surprised if you needed to get your frame repaired, but it’s comforting to know that finding a steel welder in the middle of nowhere is far easier than getting your alloy frame repaired.

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.
