Description
The Steamroller / Steamroller is an exceptionally simple and beautiful fixie (fixed gear frame) among many sport bikes.
Its design is not a track bike like the so-called bicycle racers, but more like a road bikE Surly's Natch! Double-butted 4130 CroMoly steel frame provides a tire clearance of 38mm, which is larger than you would expect on a regular track bike, and is both agile and comfortable to ridE
Of course, it is fun to build it as an orthodox track bike, but it can also be used as a commuter, or with block tires for riding on dirt roads, or as a daily driver, or as a playmate, running freely from the city to riverbeds, on shortcuts and back roads in grassy areas, and so on. It is a perfect partner for daily use, or for fun.
The direct acceleration of a single speed, the freedom to pedal without worrying about shifting gears, and the fact that it's a track bike, yet it's a bike that can be ridden on the road, not in the city. The best thing about this bike is that, despite being a track bike, it can be equipped with slightly larger tires for a comfortable ridE
SPEC
| Tubing | Surly 4130 CroMoly steel. main triangle is double-butted. |
| Rear Dropouts | Investment cast Surly track dropouts, 120mm spaced |
| Brake Compatibility | Standard reach road calipers, but there are no stops for housing |
| Braze-ons/extras | Eyelets on the rear dropouts and one set of water-bottle mounts on the seattube 'cause we're not camels |
| Seatpost diameter | 27.2mm |
| Seatpost clamp diameter | 30.0mm Surly stainless, included |
| Headset/Steerer Tube | EC34/28.6 upper, EC34/30 lower |
| Bottom Bracket Shell | 68mm wide, threaded English 1.37Ë x 24t |
| Chainring Clearance | Heavy manipulation of the chainstays gives room for a 50t ring while maintaining chainlinE Track crank-compatible |
| Tire Clearance | 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) |
| Fork | 4130 CroMoly, lugged and brazed flat crown that is drilled to accept a standard mid-reach (47-57mm) caliper brakE There are no eyelets at the dropouts |
| 49cm | 53cm | 56cm | 59cm | Seat Tube Length(Center-Top) (mm) | |
| Seat Tube Length(Center-Top) (mm) | Seat Tube Length(Center-Top) (mm) | 530 | 560 | 590 | 620 |
| Top Tube Length(Center-Center) (mm) | 526.5 | 547 | 568 | 587 | 608 |
| Effective Top Tube Length(Center-Center) (mm) | 529.5 | 547 | 587 | 587 | Head Tube Angle(°) |
| Head Tube Angle(°) | 72.5 | 73 | 73.5 | 74 | Seat Tube Angle(°) |
| Seat Tube Angle(°) | 74.5 | Seat Tube Angle(°) | 73.5 74 | 73 | Seat Tube Angle(°) 73 |
| BB Drop(mm) | 70 | 70 | 70 70 | 70 70 | 70 70 |
| Chainstay Length(mm) | 398 | 398 | 398 398 | 398 398 | 398 398 398 398 |
| Wheelbase(mm) | 965.7 | 966.6 | 978.6 | 988.1 | 1009.1 |
| Standover Height(mm) | 748.5 | 780.5 | 807.9 | 835.2 | 865.3 |
| Head Tube Length(mm) | 83 | 136 | 136 | 163 | Fork Length(mm) |
| Fork Length(mm) | 375 | Fork Length(mm) 375 | 375 375 | 375 375 375 | 375 375 375 375 |
| Fork Offset(mm) | 38 | 38 | 38 38 | 38 38 | 38 38 38 |
| Stack(mm) | 504.9 | 531.3 | 558.8 | 586.4 | 618.1 |
| Reach(mm) | 388.1 | 394.3 | 402.3 | 408.2 | 420.6 |
Frame and fork are sold as a set.
Please feel free to contact us for assembly consultation.
- Orders are shipped within 1–2 business days after payment is confirmed. Orders placed by 10:00 AM are generally shipped the same day.
- Messenger delivery is available within Nagoya City only (excluding complete bikes and framesets).
- We ship every day from Monday through Sunday, except on temporary closure days.
- Shipping destinations: throughout Japan and worldwide.
- Shipment may be delayed depending on credit card processing. If you would like to request a delivery date or time, please add a note in your cart.
- All orders are shipped from Circles.
- For damage or loss during transit, please contact the carrier.
Complete Bike Shipping within Japan
- A shipping fee of ¥9,900 (tax included) applies to complete bikes. Additional charges may apply for Okinawa and remote islands.
- After purchase, we perform a final inspection before shipping. Please allow 1–2 weeks in some cases.
- For packing, some parts may be removed. We strongly recommend having the bike reassembled and checked by your local bicycle shop before riding.
- We will contact you by email with delivery details.
- Products are also sold in-store, so availability may change before the order is finalized.
Frameset Shipping within Japan
- Flat-rate shipping within Japan: ¥5,500 (tax included). Additional charges may apply for Okinawa and remote islands.
- Shipping rates for OMNIUM framesets and complete bikes differ.
- We will contact you by email with delivery details.
- Facing and tapping preparation for framesets purchased from Circles is available at no additional charge. Details will be provided after purchase.
- Headset and bottom bracket installation are also available for an additional labor fee. Please contact us if required.
Custom & Stock Wheel Shipping within Japan
- A shipping fee of ¥2,000 (tax included) applies. Additional charges may apply for Okinawa and remote islands.
- Stock wheels undergo a final inspection by a mechanic before shipping. Please allow approximately 3 business days for dispatch.
For international orders, shipping costs vary by destination. Please check the amount shown at checkout.









