Framesets
Surly Steamroller Frameset - Anxious Lavender
49cm
Package contents
Included Components
- Surly Surly Steamroller · Included with 49cm
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
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Catalog trust
Evidence and freshness
Technical-source dates and retailer offer checks are separate. A retailer check does not validate compatibility.
Report a correction- Technical review
- Aug 17, 2026
- Compatibility review
- Reviewed Aug 17, 2026
Approved technical sources
- Surly official bbShell for FM6920ManufacturerSource checked Aug 15, 2026Evidence reviewed Aug 15, 2026
Technical data
Specifications
- Supported wheel diameters
- ISO 622 (700c / 29″)
- Supported rear axles
- 10x120
- Supported build types
- Fixed Gear, Single Speed
- Bottom bracket shell
- BSA-68
- Maximum tire width
- 38 mm
- Seatpost diameter
- 27.2 mm
- Brake mount
- Rim Caliper
- Maximum chainring
- 50T
- Frame size
- 49 cm
- Seat tube length
- 515 mm
- Effective top tube
- 528 mm
- Head tube length
- 83 mm
- Bottom bracket drop
- 70 mm
- Head tube angle
- 72.5°
- Seat tube angle
- 74.5°
- Wheelbase
- 957 mm
- Chainstay length
- 398 mm
- Standover height
- 754 mm
- Stack
- 505 mm
- Reach
- 388 mm