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Surly Steamroller Frameset

Surly Steamroller Frameset
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Details

The Original Single Speed Commuter Bike
Steamroller is the bicycle in its simplest form. While it often gets compared to single speed track bikes, it's much more than that. Built to excel on crumbling city streets, its beefy tire clearance makes it a great choice for minimalist commuters as well as dedicated winter commuters who know the havoc road salt wreaks on drivetrains.

As one of the first models we ever produced, Steamroller is truly like a member of the family. And we're talking one we actually like, not your weird Uncle Norman who insists on showing you his magic tricks while always finding a way to ruin Thanksgiving.

- Investment cast Surly track dropouts spaced at 120mm
- Fender eyelets on the rear and one set of water bottle mounts on the seat tube
- Clearance for 700c x 38mm tires

Specs:
- Rear Dropout Configuration: Horizontal
- Rear Hub Spacing: 10 x 120mm
- Front Hub Spacing: 9 x 100mm
- Brakes: Rim - Caliper (mid reach)
- Head Tube: Ø34mm
- Steerer Tube: Ø28.6mm (1-1/8")
- Crown Race: Ø30mm (1-1/8")
- Stock Headset Upper (S.H.I.S.): EC34/28.6
- Stock Headset Lower (S.H.I.S.): EC34/30
- Seat Collar: Ø30mm
- Max Chainring (CL): 1x (Track): 50T
- Tire Clearance Frame: 700c x 32mm (w/ fenders); 700c x 38mm (w/o fenders)
- Tire Clearance Fork: 700c x 32mm (w/ fenders); 700c x 38mm (w/o fenders)
- Rigid Fork Spec: 375 x 38mm
- Bottle Mounts Frame: 1 Standard
- Fender Mounts Frame: Yes

Geometry

Geometry Chart:
Frame Size49cm53cm56cm59cm62cm
Reach (mm) 388.1 394 402.3 408.2 420.6
Stack (mm) 504.9 531.3 558.8 586.4 618.1
Head Tube Angle 72.5° 73.0° 73.5° 74.0° 74.0°
Head Tube Length (mm) 83 109 136 163 196
Seat Tube Length (mm) 490 530 560 590 620
BB Drop (mm) 70 70 70 70 70
Wheelbase (mm) 956.8 966.5 978.6 987.5 1009.1
Chainstay Length (mm) 398 398 398 398 398
Top Tube Length, Actual (mm) 526.5 547 568 587 608
Top Tube Length, Effective (mm) 529.5 547 568 587 608
Seat Tube Angle 74.5° 74.0° 73.5° 73.0° 73.0°
Standover Height (mm) 748.5 780.5 807.9 835.2 865.3
Fork Length (mm) 375 375 375 375 375
Fork Rake (mm) 38 38 38 38 38

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specs

Frame 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
Fork 4130 Chromoly, Natch tubing, double-butted tapered fork blades, brazed lugs, ED coated
Bottom Bracket 68mm threaded (1.37" x 24TPI)
Seatpost Ø27.2mm

* Subject to change without notice.

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