State Bicycle 4130 - Matte Olive
Redesigned. Reinvented. Ready for Anything.
"Strength without Compromise."
The 4130 Steel Line earned its namesake from the double-butted 4130-grade chromoly steel used on the frame and fork that maximizes strength without making compromises on weight. Now with completely redesigned geometry to accommodate larger tire clearance and equipped with fork and seat stay rack mounts to be the perfect all-rounder. Whether you're navigating poorly maintained city roads, exploring gravel paths, or hitting light trails, this bike is built to handle it all with style and simplicity.
This Is The Tool For You If...
- You want a bike that can handle rough city streets and gravel paths alike.
- You value the simplicity, reliability, and low maintenance of a single-speed drivetrain.
- You appreciate the strength and smooth ride quality of a premium steel frame.
- You need a versatile machine ready for racks, fenders, and daily utility.

4130 Chromoly Steel

Double-Butted Durability
The heart of this bike is its frame. We use double-butted 4130 Chromoly steel to create a chassis that is incredibly strong yet surprisingly light. Steel is renowned for its ability to absorb road vibration, providing a smooth, comfortable ride even when the pavement ends. With a TIG-welded frame and a "Wishbone" rear, it offers ample clearance for larger 38c tires, expanding your horizons beyond the tarmac.
Ultimate Versatility

Fixed, Free, & Loaded
Equipped with a sealed-bearing flip-flop hub, this bike lets you choose between riding fixed gear for maximum control or single-speed with a freewheel for easier coasting. The redesigned geometry and inclusion of fork and seat stay rack mounts turn this simple machine into a capable commuter or light tourer. It's the perfect blank canvas for your cycling adventures.
Key Features
4130 Chromoly Steel Frame
Double-butted steel frame and fork maximize strength while keeping weight low for a responsive ride.
Large Tire Clearance
Accommodates up to 38x700c tires, allowing for comfort and traction on rougher terrain and gravel.
Flip-Flop Hub
Includes a 16T freewheel and fixed gear cog, letting you easily switch between riding styles.
Rack & Fender Mounts
Equipped with fork and seat stay mounts, making it easy to outfit your bike for commuting or touring.
All-Road Wheelset
Tubeless compatible wheels with drilled 40mm high-flange hubs and sealed bearings for durability.
Specifications
| FRAME | Double-Butted 4130 Chromoly Steel, TIG Welded w/ "Wishbone" Rear |
|---|---|
| DROPOUTS | Horizontal Dropouts ft. Integrated Chain-Tensioners |
| WHEEL SET | Tubeless compatible All-Road Wheelset, 40mm High-Flange Sealed Hubs |
| FLIP-FLOP HUB | Includes 16T Freewheel and Fixed Gear Cog |
| CRANKSET | Steel Forged Crank w/ 130 BCD, 170MM Arms, 46t Chain-ring |
| GEAR RATIO | 46x16 |
| HANDLEBARS | Choose All-Road Flared Gravel Drops or Wide-Risers |
| BRAKES | Long Reach Brake Calipers (Front & Rear) |
| TIRES | 38x700c (Not tubeless rated) |
| PEDALS | Platform Pedals Included |
Dimensions & Sizing
SIZE: 6 Frame Sizes to fit any Rider Height from 5'3" to 6'7"
WEIGHT: 23 lbs 7 oz (Size 55cm Frame w/ Riser Bars)
Performance Ratings
Belcopia Rating
93%
The updated 4130 Steel Line is a massive leap forward for the fixed-gear/single-speed category. By adding gravel capability, larger tire clearance, and rack mounts to a classic steel track frame, State Bicycle Co. has created a truly "do-it-all" machine that is as tough as it is fun.