Gravel
Surly Grappler
2025 · 650b wheels · 5 sizes
Steel drop-bar trail and bikepacking bike built around 27.5 inch wheels. Surly quotes clearance for 27.5 x 3.0 inch tyres without mudguards, and 29 inch tyres up to 2.5 inch with the rear axle set back. Surly lists one geometry for all builds. Seat tube lengths are short because the top tube slopes steeply.
Size run
Published geometry by size. How each size rides and fits for your rider profile loads with the page.
| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Stack (mm) | 585 | 604 | 623 | 641 | 660 |
| Reach (mm) | 381 | 405 | 420 | 444 | 458 |
| Head angle (°) | 69.5 | 69.5 | 69.5 | 69.5 | 69.5 |
| Seat angle (°) | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 |