Surly
Bridge Club
Frame
4130 Chromoly, Natch tubing, double-butted main triangle
Wheel size
27.5 x 2.4" design; alternate 26", 27.5", and 700c
Max tyre
26 x 3.0"
Sizes
5
What it can carry
Mount provision and clearance, as Surly publishes it.
Fork mounts
2 Four-pack mounts
Bottle mounts
2 Three-Pack on XS; 1 standard + 2 Three-Pack on S-XL
Rack & fender
Front and rear fender mounts; product copy says racks/panniers supported, but exact rear rack boss layout not enumerated in table
Max tyre clearance
26 x 3.0"; 27.5 x 2.8"; 700c x 47; reduced with fenders
Dropper post
Not compatible
Geometry
All figures in millimetres except angles. Effective top tube and seat tube are the two that decide frame bag fit.
| Size | Eff. top tube | Seat tube | Standover | Head tube | Stack | Reach | Chainstay | Wheelbase | BB drop | Head angle | Seat angle |
|---|---|---|---|---|---|---|---|---|---|---|---|
| X-Small | 545 | 335.6 | 709 | 110 | 553 | 376 | 435 | 1032 | 60 | 70° | 73° |
| Small | 570 | 406.4 | 750.5 | 120 | 567 | 397 | 435 | 1047.5 | 60 | 71° | 73° |
| Medium | 595 | 457.2 | 780 | 130 | 576 | 419 | 435 | 1073 | 60 | 71° | 73° |
| Large | 615 | 508 | 812 | 145 | 590 | 434.5 | 435 | 1093 | 60 | 71° | 73° |
| X-Large | 630 | 558.8 | 845.5 | 165 | 609 | 444 | 435 | 1109 | 60 | 71° | 73° |
Source: https://surlybikes.com/products/bridge-club-frameset-whipped-butter — checked 2026-08-16. A dash means Surlydoesn't publish that figure; we leave it blank rather than estimate.
Note: Geometry maps cleanly. Wheel/tire compatibility varies substantially by wheel size and fender use.
Find bags that fit
The bag finder can load this bike's published geometry directly — pick Surly Bridge Club and your size, and it will check every bag in the database against your frame triangle.
Open the Bag Finder