The foundation of every great fixed gear build. Double-butted 4130 chromoly steel with wishbone rear geometry, horizontal dropouts with integrated chain tensioners, and clearance for tires up to 45c.


Key Features
- Double-butted 4130 chromoly steel, TIG welded
- Wishbone rear geometry for clearance up to 45c (50c+ reported)
- Horizontal dropouts with integrated chain tensioners
- Dual water bottle cage mounts
- Frame weight: 6 lb 14 oz (46cm) to 7 lb 10 oz (59cm)
- 6 sizes from 46cm to 62cm
Specifications
| Material | Double-Butted 4130 Chromoly Steel, TIG Welded |
|---|---|
| Fork | 1 1/8" 4130 Chromoly |
| Headset | 1 1/8" Threadless |
| Rear Geometry | Wishbone design for larger tires |
| Dropouts | Horizontal with Integrated Chain-Tensioners |
| Max Tire Clearance | 45c (up to 50c+ reported) |
| Water Bottle Mounts | 2 cages |
| Weight (46cm) | 6 lb 14 oz |
| Weight (52cm) | 7 lb 2 oz |
| Weight (59cm) | 7 lb 10 oz |
Frequently Asked Questions
What sizes are available?
46cm (5'3"-5'6"), 49cm (5'5"-5'8"), 52cm (5'7"-5'10"), 55cm (5'9"-6'0"), 59cm (5'11"-6'3"), 62cm (6'2"-6'7").
Can I run a freewheel on this frame?
Yes. The horizontal dropouts work with both fixed gear cogs and freewheels for single-speed setups.
What seatpost diameter does this frame use?
This frame uses a 27.2mm seatpost. Pair with the State Bicycle Co. 27.2mm Seatpost.