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4130 Chromoly Steel All-Road Bike — Tropical Red Fixed Gear

One Bike, Every Road, No Compromise

Chromoly steel frame — Double-butted for smooth, comfortable rides
Up to 45c tire available — Conquer any road surface confidently
Flip-flop hub versatility — Switch fixed-gear to single-speed easily
Six frame size options — Fit riders from 5'3" to 6'7"
  • Free shipping -- No hidden freight charges on any order
  • Free Price Match Guarantee -- Find it cheaper elsewhere, we match it
  • Free Expert Consultation -- Talk to a real rider before you buy

$579.99

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4130 - Tropical Red – (Fixed Gear / Single-Speed)
4130 - Tropical Red – (Fixed Gear / Single-Speed)
$579.99

30-day money back · No restocking fee

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In the box

  • 4130 chromoly steel frame and fork
  • Flip-flop hub rear wheel
4130 - Tropical Red – (Fixed Gear / Single-Speed)
4130 Chromoly Steel All-Road Bike — Tropical Red Fixed Gear
$579.99

One Bike, Every Road, No Compromise

The 4130 Steel Line in Tropical Red is a field-tested all-road machine built for riders who appreciate real craftsmanship. The double-butted chromoly frame delivers that smooth, legendary steel ride quality while clearing tires up to 45c for confidence on any surface. A flip-flop hub lets you switch between fixed-gear and single-speed on the fly. This is an investment in simplicity — one bike, built-to-perform across pavement, gravel, and everything between. Vetted for durability and backed by honest engineering, it's the kind of ride that earns a permanent spot in your garage.

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4130 Chromoly Frame
Up to 45c Tires
Flip-Flop Hub
All-Road Geometry
96/100
Ride Quality
94/100
Versatility
45c
Max Tire Width
Vetted Steel That Outlasts Big-Box Aluminum

Vetted Steel That Outlasts Big-Box Aluminum

Walking into a big-box store for a bike means getting sold whatever sits on the floor — usually heavy aluminum that beats you up on every ride. At Volt Trek, we test what we sell. If we wouldn't ride it, we don't list it. The 4130's double-butted chromoly frame is the kind of craftsmanship that big-box floors never stock. It absorbs road chatter, holds up season after season, and delivers that smooth steel ride quality that experienced riders never forget. This isn't a disposable bike — it's an investment in every mile ahead.

One Frame, Two Riding Personalities

One Frame, Two Riding Personalities

The flip-flop hub gives you the power to choose your ride every time you throw a leg over. Run it fixed for the pure, connected feel that track riders swear by — no coasting, total control. Or flip to the freewheel side for a relaxed single-speed cruise through the neighborhood. Wide tire available up to 45c means you're not limited to smooth asphalt either. Chip seal, gravel paths, cracked city streets — the 4130 handles it all without flinching. This is a built-to-perform bike ready for wherever you point it.

A Size For Every Rider In The Garage

A Size For Every Rider In The Garage

Finding the right fit online usually means guessing and hoping. The 4130 Steel Line comes in six frame sizes spanning from 46 cm to 62 cm, covering riders between five foot three and six foot seven. That's not a token small and large option — it's a real sizing range that respects your body. Pair your frame with either all-road drop bars or wide riser bars depending on your riding style. Volt Trek includes a free expert consultation with every order, so you can talk through sizing with someone who actually rides before you commit.

Find Your Frame Size

Match your height to the right frame for a comfortable, efficient ride.

  • Rider height between 5'3" and 5'6" fits 46 cm frame
  • Rider height between 5'7" and 5'10" fits 52 cm frame
  • Rider height between 6'2" and 6'7" fits 62 cm frame

Built for How You Ride

From daily commutes to weekend explorations, the 4130 Steel Line handles it all.

Urban Commuting
Gravel & Mixed Surfaces
Fixed-Gear Training

Full specifications

At a glance

Dimensions
46 cm, 49 cm, 52 cm, 55 cm, 59 cm, 62 cm
Warranty
See product page
Full specifications13 data points across 4 categories

Dimensions

Available Sizes46 cm, 49 cm, 52 cm, 55 cm, 59 cm, 62 cm
Size 46 cmRiders 5'3"-5'6"
Size 49 cmRiders 5'5"-5'8"
Size 52 cmRiders 5'7"-5'10"
Size 55 cmRiders 5'9"-6'0"
Size 59 cmRiders 5'11"-6'3"
Size 62 cmRiders 6'2"-6'7"

Power & Performance

DrivetrainFixed Gear / Single-Speed
HubFlip-Flop Hub
Max Tire available45c

Materials

Frame4130 Chromoly Steel, Double-Butted
Handlebar OptionsAll-Road Drop Bars, Wide Riser Bar, Wide Riser Bars

Compliance & Warranty

WarrantySee product page

The Volt Trek Promise

We sell what we'd put in our own garage. If it doesn't meet our standards, it doesn't make the cut.

Free ShippingShips free to your door — no hidden freight charges, no fine print.
30-Day Money-Back GuaranteeIf it's not right, send it back on us. Unused, original packaging required.
Free Expert ConsultationTalk to a real product expert before you buy — by phone, chat, or email.
★★★★★
“I've bought bikes from big-box stores before and always regretted it. The 4130 in Tropical Red is a completely different animal — smooth ride, solid build, and the flip-flop hub means I can switch it up depending on my mood. Volt Trek's sizing help nailed it on the first try.”
M
Marcus L.Austin, TX



State Bicycle Co. | 4130 Steel Line – Tropical Red

The State Bicycle Co. 4130 Steel Line bike.

State Bicycle 4130 Steel Line

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.

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 State Bicycle Co. 4130 Steel Line.

The Soul of Steel

The 4130 Steel Line against a rustic metal wall.

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

Close-up of the 4130 Steel Line's frame and tire.

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

4130 Chromoly Steel Frame

Double-butted for a perfect balance of strength, low weight, and a famously smooth and comfortable ride quality.

Wide Tire Clearance

The frame and fork are designed to accommodate tires up to 45c, for a plush, confident ride on any surface.

Flip-Flop Hub

The ultimate in versatility. Easily switch between a pure fixed-gear setup and a classic single-speed with freewheel.

Tubeless Compatible Wheels

Modern, tubeless-ready wheels allow for lower tire pressures, providing better grip and flat resistance.

Customizable Handlebars

Choose your cockpit: aggressive All-Road Flared Drops or comfortable, wide riser bars for city cruising.

See It In Action

Specifications
Frame Double-Butted 4130 Chromoly Steel
Wheel Set Tubeless compatible All-Road (Track) Wheelset
Hub Flip-Flop Hub w/ 16T Freewheel & Fixed Cog
Crankset Steel Forged Crank w/ 46t Chain-ring
Gear Ratio 46×16
Handlebars All-Road Flared Gravel Drops or Wide-Risers
Brakes Long Reach Caliper Brakes
Tires 700x38c
Dimensions & Sizing
State Bicycle 4130 Steel Line geometry chart

6 Frame Sizes to fit any Rider Height from 5’3″ to 6’7″.

Performance Ratings

Ride Quality & Comfort96/100

Versatility94/100

Durability & Reliability90/100

Style & Aesthetics87/100

Belcopia Rating

92%

The 4130 Steel Line is a masterclass in versatile, minimalist design. Its legendary steel frame provides a sublime ride feel, while the updated geometry and wide tire clearance make it a true all-road machine. For the rider who wants one simple, beautiful, and durable bike for any surface, this is an exceptional choice.

Additional information

Size

46 cm (Riders 5'3"-5'6"), 49 cm (Riders 5'5"-5'8"), 52 cm (Riders 5'7"-5'10"), 55 cm (Riders 5'9"-6'0"), 59 cm (Riders 5'11"-6'3"), 62 cm (Riders 6'2"-6'7")
Handle Bars

All-Road Drop Bars, Wide Riser Bar, Wide Riser Bars

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Frequently Asked Questions

Big-box bikes at similar price points use heavier aluminum frames with basic welds and generic components. The 4130's double-butted chromoly steel frame alone outclasses them in ride comfort and long-term durability. You're paying for a frame that absorbs road vibration instead of transmitting it to your body, plus a flip-flop hub that gives you two riding styles in one bike. At Volt Trek, every bike we carry is vetted against this exact standard — if it doesn't outperform big-box alternatives, we don't stock it.
The 4130 Steel Line comes in six sizes from 46 cm to 62 cm, covering riders from 5'3" to 6'7". Use the size chart on this page as a starting point, then take advantage of the free expert consultation included with every Volt Trek order. You'll talk to someone who actually rides and can help you nail the fit based on your inseam, riding style, and bar preference. No guesswork, no hoping it arrives right.
Fixed-gear means the rear cog is locked directly to the hub — when the wheels turn, the pedals turn. No coasting, just direct power transfer and a connected feel. Single-speed uses a freewheel, so you can coast and stop pedaling while the bike keeps rolling. The flip-flop hub on the 4130 lets you run either setup. Tighten the lockring on the fixed side for track-day purity, or flip the wheel and run the freewheel for casual neighborhood cruises.
Volt Trek ships free on every order. Processing typically takes one to three business days, and transit time depends on your location. If you need the bike by a specific date, reach out to our team before ordering — we can check real-time stock levels and give you an honest delivery estimate. No fake countdowns, no inflated promises. Just straight answers from people who actually handle the inventory.
The 4130 chromoly frame uses double-butted tubing — meaning the walls are thicker at the weld points and thinner in the middle. This shaves weight where it matters while keeping strength where it counts. Steel has a higher strength-to-weight ratio than the entry-level aluminum used on most big-box bikes, and it absorbs road vibration far better. The ride quality difference is something you feel in the first mile, not something you read on a spec sheet.
Volt Trek offers a thirty-day money-back guarantee. If the bike arrives and the size isn't right, you can return it unused in its original packaging and we'll cover the return freight. That said, we strongly recommend using the free expert consultation before you order — it exists specifically to prevent fit issues before they happen. Call us, chat with us, or email us. A five-minute conversation beats a return shipment every time.
SKU: 4130-tropical-red-fixed-gear-single-speed Category: Brand:

The Volt Trek Promise

We sell what we'd put in our own garage. If it doesn't meet our standards, it doesn't make the cut.

Free Shipping Ships free to your door — no hidden freight charges, no fine print.
30-Day Money-Back Guarantee If it's not right, send it back on us. Unused, original packaging required.
Free Expert Consultation Talk to a real product expert before you buy — by phone, chat, or email.

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About state bicycle co All-Road Bikes

state bicycle co is a trusted manufacturer of premium all-road bikes. VoltTrek is an authorized dealer offering the full state bicycle co lineup with free delivery, price match guarantee, and expert support.

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