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Steamroller Frame

Listen to veteran fixed gear riders long enough and they’ll start to wax philosophic about fixies, how the bike is an extension of one’s body, how the simplicity and the silence are pleasing to the senses, how riding one is at first unnerving and later addictive. As we have said since we introduced the Steamroller frameset, we won’t try to convince you that riding ‘fixed’ is better or special or why you should try it. You’ll have to determine that for yourself. But whether you’re old school or new hat, you’d be hard pressed to find a better canvas to build your ideal street machine.

It’s made from Surly 4130 CroMoly steel because steel is durable and responsive, things we like and we’re pretty sure you do too. Its geometry is tight compared to road frames and relaxed compared to twitchy track frames. It takes big tires because big tires make sensetire casings flex before the frame. It’s got almost no ‘features’, no pump peg, no housing stops, no cell phone or GPS mount. Just a set of water bottle braze-ons. Well, it does also have a nice brazed fork crown we think looks pretty snazzy. If you’re like us, you may consider less tangible elements (such as ride quality) to be features, and it’s got these in spades. This is a frame meant for riding. Everyday. It was designed by cyclists for cyclists. It’s most at home on the street, but it’s also track legal and does a pretty fair job on trails too. It’s a fixed gear frame in the tradition of fixed gears, before there were freewheels or handbrakes (effective ones, anyway), harkening back to a time when big tires weren’t a design feature but a necessity, when a ride was an adventure

But hey, don’t let us convince you. Try one out. It may just become your favorite bike.

Colors: Creamroller, Blaque

Geometry

Switch to mm 49cm 53cm 56cm 59cm 62cm  
Seat Tube Length
(Center-Top)
19.3 20.9 22.0 23.2 24.4
Top Tube Length
(Center-Center)
20.7 21.5 22.4 23.1 23.9  
Effective Top Tube Length
(Center-Center)
20.8 21.5 22.4 23.1 23.9  
Head Tube Angle 72.5 73.0 73.5 74.0 74.0  
Seat Tube Angle 74.5 74.0 73.5 73.0 73.0  
BB Drop 2.8 2.8 2.8 2.8 2.8  
Chainstay Length 15.7 15.7 15.7 15.7 15.7  
Wheelbase 38.0 38.1 38.5 38.9 39.7  
Seat Tube Angle 74.5 74.0 73.5 73.0 73.0  
Standover Height 29.5 30.7 31.8 32.9 34.1  
Head Tube Length 3.3 4.3 5.4 6.4 7.7  
Frame Weight 4.02 4.24 4.46 4.51 4.75  

Measurements use tire with outer diameter of 682mm (700c x 28), and taken from middle of toptube to level ground

Switch to inches 49cm 53cm 56cm 59cm 62cm
Seat Tube Length
(Center-Top)
490.0 530.0 560.0 590.0 620.0  
Top Tube Length
(Center-Center)
526.5 547.0 568.0 587.0 608.0  
Effective Top Tube Length
(Center-Center)
529.5 547.0 568.0 587.0 608.0  
Head Tube Angle 72.5 73.0 73.5 74.0 74.0  
Seat Tube Angle 74.5 74.0 73.5 73.0 73.0  
BB Drop 70.0 70.0 70.0 70.0 70.0  
Chainstay Length 398.0 398.0 398.0 398.0 398.0  
Wheelbase 965.7 966.6 978.6 398.0 1009.1  
Standover Height 748.5 780.5 807.9 835.2 865.3  
Head Tube Length 83.0 109.0 136.0 163.0 196.0  
Frame Weight 4.02 4.24 4.46 4.51 4.75  

Measurements use tire with outer diameter of 682mm (700c x 28), and taken from middle of toptube to level ground




Frame Highlights

Tubing:100% CroMoly steel. Main triangle is double-butted. TIG-welded
Rear dropouts:Investment cast Surly track dropouts, 120mm spaced
Brake compatibility:Standard reach post-mount road calipers, but there are no stops for housing.
Braze-ons:None, baby. Pure. OK, we put one set of water-bottle mounts on the seat tube ’cause we’re not camels.
Seatpost diameter:27.2mm
Seatpost clamp:30.0mm Surly stainless, included
Headset:1–1/8" threadless
Bottom bracket shell:68mm wide, threaded English 1.37" x 24t
Tire clearance:Room for tires up to 700 x 38mm. Individual tire and rim combos affect tire clearance, but figure on being able to use tires up to 32mm with fenders (p.s.- use clip-on fenders).
Chainring clearance:Heavy manipulation of the chainstays gives room for a 50t ring while maintaining chainline. Track crank-compatible.
Weight:56cm = 2000g (4.5 lbs) Fork - uncut = 850g (1.9 lbs)