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Full Manufacturer Backing: State Bicycle Co.
State Bicycle Co. builds machines meant to be ridden hard. As an authorized retailer, every bike we sell is backed by State’s "ProBuild" warranty standards, ensuring your rig is protected against manufacturing defects.
Coverage Breakdown:
- 5-Year Frame & Fork: Coverage for Steel and Aluminum frames/forks against manufacturing defects.
- 18-Month eBike System: Protection for the motor, electronics, and battery suite.
- 1-Year Components: Coverage for non-consumable parts (cranks, pedals, bars, wheels, etc.).
- Carbon Advantage: Professionally built carbon frames receive an extended 2-year warranty.
The ProBuild Requirement
To ensure peak performance and validate your warranty, State Bicycle Co. requires proof of professional assembly by a certified mechanic. Bikes must be registered within 30 days of delivery.
Hassle-Free Registration
Don't sweat the paperwork. For our signature service, simply email your proof of assembly and order details to support@belcopia.com and our team will handle the official registration with State for you.
Frame Material
4130 Chromoly
Drivetrain
Fixed / Single Speed
Wheel Size
700c
Weight
22 lb 10 oz
Use Type
Commuter / All-Road
State Bicycle 4130 Tropical Red
The All-Road Original
"Built to Explore. Styled to Impress."
The 4130 Steel Line is the heart of our collection, a testament to the timeless ride and rugged durability of steel. This is a bike for the purist who craves versatility. Feel the lively, road-smoothing magic of the double-butted 4130 Chromoly frame, a tangible connection to the path ahead.
Now updated with clearance for wide, all-road tires, this bike is more capable than ever. Choose your ride with the flip-flop hub and conquer any terrain, from city streets to gravel backroads. It's your simple, beautiful, and endlessly capable companion for every adventure.
"The 4130 Tropical Red brings a vibrant, retro-inspired energy to our ultimate 'classic' build. We used double-butted Chromoly not just for weight, but for its fatigue life—it’s designed to handle a decade of city potholes while the eye-catching red finish and tan-wall tires stay looking sharp despite the daily commute."
THIS IS THE TOOL FOR YOU IF...
- You want one beautiful, durable bike for commuting, fitness, and all-road exploration.
- You appreciate the legendary ride quality and "feel" of a premium steel frame.
- You love the pure, simple experience of a single-speed or fixed-gear bike.
- You need a versatile machine that can handle both smooth pavement and rougher paths.
THE SOUL OF STEEL
A Ride Like No Other
There's a tangible character to a steel bike that you have to feel to understand. The Double-Butted 4130 Chromoly frame is the heart of this machine, engineered to be both strong and forgiving. Feel how it mutes the high-frequency road chatter, taking the edge off of rough surfaces and reducing fatigue on long rides.
Sense its lively, "springy" feedback as you accelerate and carve through corners. It’s a dynamic, comfortable, and deeply engaging ride that connects you to your journey.
VERSATILITY, REDEFINED
One Bike, Any Road
This is our most capable 4130 Steel Line yet. The redesigned frame now has clearance for tires up to 45c, transforming it from a classic road bike into a versatile all-road weapon.
Feel the plush, confident grip of wider tires as you float over cracked pavement and hard-packed dirt that would rattle a traditional road bike. It’s a tangible sense of freedom that allows you to choose your path, not be limited by it. Pavement, potholes, or gravel—this bike is ready.
KEY FEATURES
Double-Butted 4130
Thicker at the ends for strength, thinner in the middle for weight savings. The gold standard for urban steel bicycles.
Flip-Flop Hub
Includes a 16T freewheel and fixed gear cog. Seamlessly switch between track-style fixed gear riding and relaxed coasting.
Lo-Pro Wheelset
V-style deep rims paired with sealed bearing hubs. Smooth, fast, and built to take a severe beating from city potholes.
Dual Caliper Brakes
Includes front and rear caliper brakes out of the box, ensuring safe, reliable stopping power for unpredictable city traffic.
Massive Tire Clearance
The steel frame is designed to accommodate tires up to 45c, allowing for a plush, gravel-ready ride on any surface.
Custom Handlebars
Choose your cockpit: aggressive All-Road Flared Drops or comfortable, wide riser bars for upright city cruising.
SEE IT IN ACTION
WHY THIS BUILD MATTERS
The 4130 isn't just about looks. It's meticulously engineered for urban survival. Here is the technical breakdown of why this bike outperforms standard commuters.
Double-Butted 4130 Steel
Unlike standard high-tensile steel, our 4130 Chromoly features variable wall thickness. It maintains a staggering 100,000 PSI tensile strength at the joints while shaving off excess material in the center, resulting in a frame that is 20% lighter without sacrificing durability.
16 Unique Skid Patches
If you ride fixed, you know the pain of burning through rear tires. Our optimized 46/16 gear ratio is mathematically engineered to distribute your stopping friction across 16 unique skid patches, effectively tripling your rear tire life compared to a standard 48/16 setup.
Massive 38c-45c Tire Clearance
We designed the frame and fork to fit massive high-volume tires. This rubber acts as a "natural suspension" system, absorbing up to 35% more road vibration than traditional 25c commuter tires, turning brutal city potholes into minor bumps.
Technical Specifications
| Frame | Double-Butted 4130 Chromoly Steel, TIG Welded w/ "wishbone" rear to Accommodate up to 45c tires, Die Cast Dropouts, Integrated Chain Tensioners, External Cable Routing |
|---|---|
| Fork | Segmented Design 1 ⅛" 4130 Chromoly Steel |
| Bottom Bracket | Sealed Cartridge, JIS Square Taper, English Threaded, 68mm x 103mm |
| Brakes | Dual Pivot Forged Alloy (Clamp Diameter: 22.2mm for Risers, 31.8mm for Dropbars) |
| Chain & Chainring | YAB Chain | Steel 46T, 130 BCD Chainring |
| Crank | Steel Forged Crank, 130 BCD, 170mm Crank Arms |
| Handlebars | Wide Riser (Oversized 31.8 clamp, 600mm W, 30mm Rise) OR All-Road Dropbars (Oversized 31.8 clamp, 500mm drops/420mm top, 18° flare) |
| Headset & Stem | 1 ⅛" threadless Headset | 3D-Forged Alloy Stem (OS 31.8mm clamp, Length: 90mm, Rise: +/- 7°) |
| Hubs | Sealed Bearing, Flip-Flop Hub (16T Freewheel and Fixed Cog), Spacing: F:100mm / R:120mm, Bolts: M10 |
| Wheels | Tubeless-Capable 700c with CNC side-wall, 28mm Depth / 18mm Width (Rim Inside Width: 18mm) |
| Spokes | 14G Steel, 3 Cross Pattern (Deep V F/R: 270mm | Lo Pro F: 296mm / R: 294mm) |
| Tires | 700c x 38c (Min tire width: 700x25c / Max tire width: 700x45c) |
| Seatpost & Clamp | Aluminum, D: 27.2mm, L: 300mm | Clamp: Aluminum, D: 29.5mm |
| Saddle & Pedals | Polyurethane w/ Steel Rails | Welgo Brand Alloy Pedals |
Sizing & Frame Geometry
Rider Sizing Guide
| Frame Size | Rider Height | Inseam (in) |
|---|---|---|
| 46 cm | 5'3" - 5'6" | 26.5" - 28.5" |
| 49 cm | 5'5" - 5'8" | 28" - 29.5" |
| 52 cm | 5'7" - 5'10" | 29" - 32" |
| 55 cm | 5'9" - 6'0" | 31.5" - 34" |
| 59 cm | 5'11" - 6'3" | 33.5" - 35.5" |
| 62 cm | 6'2" - 6'7" | 35" - 37" |
Detailed Geometry Measurements
| Measurement | 46cm | 49cm | 52cm | 55cm | 59cm | 62cm |
|---|---|---|---|---|---|---|
| Actual Top Tube Length | 542mm | 550mm | 555mm | 565mm | 597mm | 600mm |
| BB Drop | 65mm | 65mm | 65mm | 65mm | 65mm | 65mm |
| Chain Stay Length | 434mm | 434mm | 434mm | 434mm | 434mm | 434mm |
| Complete Bike Wgt (D / R)* | 9.3kg / 9.1kg | 9.6kg / 9.4kg | 10.36kg / 10.28kg | 10.96kg / 10.78kg | 11.61kg / 11.41kg | 12.2kg / 12.05kg |
| Crank Arm Length | 170mm | 170mm | 170mm | 170mm | 170mm | 170mm |
| Effective Top Tube | 542mm | 550mm | 555mm | 565mm | 597mm | 600mm |
| Fork Length | 408mm | 408mm | 408mm | 408mm | 408mm | 408mm |
| Fork Offset | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
| Frame Set Weight | 3230g | 3260g | 3340g | 3380g | 3440g | 3570g |
| Head Tube Length | 95mm | 95mm | 95mm | 105mm | 140mm | 160mm |
| Head Tube Angle | 72° | 72° | 72° | 73.5° | 73.5° | 73.5° |
| Reach | 393mm | 395mm | 390mm | 391mm | 418mm | 421mm |
| Seat Tube | 460mm | 490mm | 520mm | 550mm | 590mm | 620mm |
| Seat Tube Angle | 74.5° | 74.5° | 74° | 73° | 73° | 73° |
| Stack | 537mm | 537mm | 537mm | 551mm | 585mm | 604mm |
| Standover Height | 755mm | 769mm | 801mm | 823mm | 838mm | 863mm |
| Wheel Base | 1023mm | 1025mm | 1028mm | 1011mm | 1048mm | 1050mm |
*Weight variants: D = Drop Bars, R = Riser Bars
Frequently Asked Questions
What is the standover height of the 4130 frame?
Standover height ranges from 29.1" on the 49cm frame to 33.7" on the 62cm frame. We recommend measuring your actual inseam to ensure at least 1 inch of clearance over the top tube.
Can I ride this bike if I’ve never ridden a fixie before?
Yes. Every 4130 ships with a Flip-Flop Hub, allowing you to easily switch between Fixed Gear and a standard Single-Speed Freewheel that allows you to coast.
Does the Tropical Red model come with brakes?
Yes, this model includes both front and rear dual-pivot caliper brakes and levers, making it 100% street-legal and safe for urban riding.
What is the benefit of a 4130 Chromoly Steel frame?
4130 Chromoly is double-butted steel that is stronger and lighter than high-tensile steel, offering superior vibration dampening for a smoother ride on rough pavement.
What is the gear ratio on the 4130 Tropical Red?
The bike features a 46x16 gear ratio. This setup is optimized for city commuting, providing a balanced blend of climbing torque and flat-land speed.
How much does the 4130 Fixed Gear weigh?
The average weight is approximately 22 lbs 10 oz for a 55cm frame, providing a stable and planted feel in city traffic compared to lighter aluminum models.
How often should I tension the chain?
We recommend checking tension every 100–200 miles. Horizontal dropouts allow for easy adjustment to prevent chain drop and ensure a quiet drivetrain.
What tire pressure should I run in the stock tires?
We recommend 90–110 PSI. Lower pressure increases comfort on bumpy roads, while higher pressure minimizes rolling resistance for maximum speed.
What's In The Box
- State 4130 Tropical RedArrives 90% assembled. Just attach the front wheel, pedals, and handlebars.
- Pedal SetWellgo Alloy Pedals included. No need to buy aftermarket pedals.
- Braking SystemBoth Front and Rear caliper brakes are included in the box.
