Official sizing guide for 2026
Surly builds steel bikes designed for real-world riding—loaded touring, daily commuting, gravel adventures, and everything in between. Their sizing prioritizes versatility and comfort over race performance, with generous tire clearance and mounting options on every frame. Surly uses numeric frame sizing (measured center-to-top of seat tube) and designs each size to accommodate a wide range of rider proportions when paired with the right stem and seatpost configuration.
| Size | Height Range | Inseam Range |
|---|---|---|
| 46 | 4'12" - 5'4"(152 - 163 cm) | 27.2" - 29.5"(69 - 75 cm) |
| 50 | 5'3" - 5'7"(161 - 170 cm) | 29.1" - 31.1"(74 - 79 cm) |
| 54 | 5'6" - 5'10"(168 - 178 cm) | 30.7" - 32.7"(78 - 83 cm) |
| 56 | 5'9" - 6'1"(175 - 185 cm) | 32.3" - 34.3"(82 - 87 cm) |
| 58 | 6'0" - 6'4"(183 - 193 cm) | 33.9" - 35.8"(86 - 91 cm) |
| 62 | 6'3" - 6'7"(190 - 200 cm) | 35.4" - 37.4"(90 - 95 cm) |
| Size | Height Range | Inseam Range |
|---|---|---|
| XS | 4'12" - 5'4"(152 - 163 cm) | 27.2" - 29.5"(69 - 75 cm) |
| S | 5'3" - 5'7"(161 - 170 cm) | 29.1" - 31.1"(74 - 79 cm) |
| M | 5'6" - 5'10"(168 - 178 cm) | 30.7" - 32.7"(78 - 83 cm) |
| L | 5'9" - 6'2"(175 - 188 cm) | 32.3" - 34.6"(82 - 88 cm) |
| XL | 6'1" - 6'6"(186 - 198 cm) | 34.3" - 36.6"(87 - 93 cm) |
| Size | Height Range | Inseam Range |
|---|---|---|
| S | 5'2" - 5'7"(157 - 170 cm) | 28.3" - 30.7"(72 - 78 cm) |
| M | 5'6" - 5'11"(168 - 180 cm) | 30.3" - 32.7"(77 - 83 cm) |
| L | 5'10" - 6'3"(178 - 190 cm) | 32.3" - 34.6"(82 - 88 cm) |
| XL | 6'2" - 6'7"(188 - 200 cm) | 34.3" - 37.0"(87 - 94 cm) |
Specific sizing recommendations for Surly's most popular bike models. Geometry measurements shown for reference size (typically M or 54cm).
Steel gravel/commuter bike with drop bars and clearance for 700x41mm or 650bx47mm tires. Relaxed geometry suits both commuting and light touring—riders who prefer a more upright position should consider sizing up.
Legendary steel touring bike designed for loaded multi-day travel. Traditional touring geometry with longer chainstays for stability under heavy panniers—size based on height chart and plan for a professional fit if touring long distances.
Steel all-rounder with flat bars and clearance for 27.5x2.5-inch tires. Designed for everything from commuting to off-road touring—extremely versatile sizing suits riders who want one bike for multiple purposes.
Steel hardtail with modern trail geometry and clearance for 29x3.0-inch or 27.5x3.8-inch tires. Versatile frame accommodates rigid fork, suspension fork, or even drop bars—size based on reach for your intended riding style.
Use our free calculators to determine your ideal Surly frame size based on your measurements.
Compare sizing across different bike manufacturers to find your perfect fit.