The ultimate steel single speed cross bike. The Nature Boy you know and love with a high end Columbus Zona tubeset, Press Fit 30 bottom bracket, new internal top tube cable routing detail, and lighter non removable brake posts.
*This model is sold out, though may be in stock at bike shops around the country. If you need help tracking one down, contact us.*
Features
Frame
Columbus Zona tubeset. Double butted down, top, and seat tubes. Externally tapered, ovalized, and dimpled chain stays, tapered seat stays.
Fork
4130 ChroMoly double butted tapered fork blades, lugged crown and matching fork end. Designed to be interchangeable with most aftermarket
Internal cable routing
The internal rear brake routing not only improves the beauty of the frame, but also provides the ultimate in comfort when grabbing the top t
Signature Dropouts
Investment cast from stainless steel, featuring built in chain tensioners, and the timeless Hennepin Bridge icon.
Subtle fender mounts
We hope you ride this bike in all conditions all year long, so with that in mind we added fender mounts. Since this is a race bike and we t
E.D. Finish
The entire bike is E.D. coated inside and out. E.D. coating not only improves the quality and durability of the paint, but is the best rust
Cross race geometry
This bike was designed to go real fast off road. It features aggressive yet traditional cyclocross racing geometry and goes like hell.
Tire clearance
You can fit 38’cs in this bad boy front and rear, no problem. If you’re running fenders it’ll clear 35’s.
Steel tubing
Steel remains the preferred material for those who appreciate ride quality. It is the benchmark that all other frame materials are compared
Build Specs
Head Tube: 1 1/8th inch
Bottom Bracket: 68mm
Rear Spacing: 130mm
Seat Post: 27.2
Brakes: Cantilever
Dropout Hardware: M4 x 0.8 x 40mm full thread
Max Chainring: 48 tooth
Frame Weight: lbs (55cm)
Fork Weight: 2.2 lbs
Geometry
| Size | 49cm | 52cm | 55cm | 58cm | |
|---|---|---|---|---|---|
![]() | Head Tube Angle | 71 | 71.5 | 72 | 72.5 |
![]() | Seat Tube Angle | 73.5 | 73 | 73 | 72.5 |
![]() | Top Tube Length | 530 | 550 | 565 | 590 |
![]() | Seat Tube Length | 515.5 | 545.4 | 575.4 | 605.3 |
![]() | Chainstay Length | 420 | 420 | 420 | 420 |
![]() | Bottom Bracket Drop | 70 | 70 | 70 | 70 |
![]() | Fork Offset | 45 | 45 | 45 | 45 |
![]() | Total Fork Length | 395 | 395 | 395 | 395 |
![]() | Head Tube Length | 110 | 130 | 150 | 175 |
![]() | Wheelbase | 992.5 | 1003.7 | 1014.4 | 1029.3 |
Part Numbers
| Part Number | Size | Color | Description |
|---|---|---|---|
| FM4727 | 49cm | Burt Reynolds | Nature Boy Zona LTD Frameset 49cm |
| FM4728 | 52cm | Burt Reynolds | Nature Boy Zona LTD Frameset 52cm |
| FM4729 | 55cm | Burt Reynolds | Nature Boy Zona LTD Frameset 55cm |
| FM4730 | 58cm | Burt Reynolds | Nature Boy Zona LTD Frameset 58cm |


Frame
Fork
Internal cable routing
Signature Dropouts












































