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Ships within 48 hours · Estimated delivery Jun 30 - Jul 5
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Description
gravel bike 2021 4130 All-Road - Root Beer (12 Speed / UDH) Extra Small ( Riders 5'1" - 5'6")The 4130 All Road is built for riders who want to do everything gravel races, bikepacking missions, commutes, trail days without buying multiple bikes or compromising on any of them. A fully revamped 4130 Chromoly Steel frame with UDH compatibility, dropper post readiness, semi internal cable routing, and mounts for bottles, racks, fenders, and accessories gives you a platform that can be set up for almost anything. Platform Highlights 4130 Chromoly
The 4130 All-Road is built for riders who want to do everything — gravel races, bikepacking missions, commutes, trail days — without buying multiple bikes or compromising on any of them. A fully revamped 4130 Chromoly Steel frame with UDH compatibility, dropper-post readiness, semi-internal cable routing, and mounts for bottles, racks, fenders, and accessories gives you a platform that can be set up for almost anything.
Platform Highlights
- 4130 Chromoly Steel Frame — Tough, repairable, and with a ride quality that carbon can't replicate. Built for the long haul.
- UDH-Compatible — Universal Derailleur Hanger means no hunting for proprietary parts anywhere in the world.
- Dropper Post Ready — Internal routing already in place. Add a dropper whenever you're ready.
- Semi-Internal Cable Routing — Cleaner than fully external, easier to service than fully internal.
-
Tire Clearance — Plenty of room for real-world rubber in any configuration:
- Frame & Standard Fork: 700c x 55mm (2.2") or 650b x 60mm (2.4")
- Frame & Monster Fork (Carbon): 700c x 55mm (2.2") or 650b x 55mm (2.2")
- Mounts for Everything — 3 water bottle mounts plus rack, fender, and accessory mounts. Pack it up or strip it down.
Build & Customize
Wheelset — choose your build
700c — Fast & Versatile
- 23mm tubeless-capable rims (tape, valves, and sealant required)
- Continental Terra Hardpack TR 50mm
- Best for: gravel racing, mixed-surface riding, fast days out
650b — Capable & Comfortable
- 25mm tubeless-capable rims (tape, valves, and sealant required)
- Vittoria Barzo 2.1" knobby tires
- More volume, more grip, more trail capability
- Best for: bikepacking, rough terrain, off-road days
💡 Want both? Add the dual wheelset option — wheels, tires, tubes, rotors, and cassette — for $299.99. Swap between setups in minutes.
The 700c tire: one of the fastest-rolling 50mm gravel tires you can buy.
The Continental Terra Hardpack TR 50 scored 18.6 watts rolling resistance in independent lab testing at BicycleRollingResistance.com — earning a 4.5/5 "Highly Recommended" rating and putting it among the fastest gravel tires at this width. A flat central tread keeps things quick on pavement and hard-pack, while developed shoulder lugs and Continental's ShieldWall puncture protection handle the rough stuff. PureGrip compound means grip and durability don't get traded off against each other. At 50mm, this tire smooths out terrain that would rattle a narrower setup — without giving up speed.
Fork — choose your setup
4130 Chromoly Steel Fork
- Matched to the frame — same ride character
- 12x100mm thru-axle
- Mounting points for racks and accessories
Carbon Fiber "Monster Fork"
- Saves over 1.25 lbs vs steel fork
- Geometry-altering flip-chip for fit adjustment
- Improved comfort and front-end stiffness
All-Road Suspension Fork
- 40mm travel — takes the edge off rough terrain
- Noticeably smoother on chunky gravel and trails
- Regular MSRP $450
Complete Component Spec
Frame
- 4130 Chromoly Steel with Thru-Axle Dropouts (142mm rear spacing)
- UDH-Compatible derailleur hanger
- Semi-Internal Cable Routing
- Dropper Post Ready
- Mounts for 3 water bottles, racks, fenders, and accessories
Drivetrain
- 12-Speed State Bicycle Co. drivetrain
- Crank: 40t Direct Mount Chainring
- Cassette: 11–46t (upgrade to 11–50t available for $69.99)
Cockpit & Brakes
- Gravel handlebar with 33° flare
- Cable-Actuated Hydraulic Disc Brakes with compressionless housing
- Note: SRAM drivetrain upgrades include full hydraulic brakes
Rims
- 700c: 23mm tubeless-capable (tape, valves, and sealant required)
- 650b: 25mm tubeless-capable (tape, valves, and sealant required)
Tires
- 700c: Continental Terra Hardpack TR 50mm — tubeless ready
- 650b: Vittoria Barzo 2.1" — not tubeless rated
⚠️ Please note: the Vittoria Barzo tires (650b) are not rated tubeless. While it may be possible to set these up tubeless, we cannot guarantee compatibility. State Bicycle Co. recommends professional assembly for tubeless setups.
Available Upgrades
Drivetrain
SRAM Rival XPLR AXS — Wireless 13-Speed
- Rival E1 carbon levers & hydraulic brakes
- Rival XPLR rear derailleur
- Rival 10–46t 13-speed cassette
- SRAM Flat-Top chain
- Battery & charger included
- Apex D1 - 170mm Crank - 40t
- Best for: riders who want a wider range and more refined components for longer days in the saddle
SRAM Eagle Transmission "Mullet" AXS — Wireless 12-Speed
- Rival E1 carbon levers & hydraulic brakes
- S1000 T-Type rear derailleur
- Eagle 10–52t cassette (XS1270) — massive range
- Eagle T-Type chain
- Battery & charger included
- Apex D1 - 170mm Crank - 40t
- Best for: big mountain days, loaded bikepacking, or anyone who wants to spin up anything
Wheels
Dual Wheelset (700c + 650b)
- Both wheel sizes and tire setups
- Rotors, cassette, and tubes included
- Swap between setups in minutes
DT Swiss Alloy Wheelset
- Available in 650b or 700c
- A meaningful step up in stiffness, weight, and hub quality
Top Upgrade ENVE AR40 Carbon Wheelset
- Wind tunnel-tested aerodynamics
- 25mm internal rim width — wide and fast
- Gravel-rated durability, tubeless only (sealant included)
- Available in HG and XDR driver
- The fastest wheel upgrade available for this build
Size Recommendations
| Size | Height Range |
|---|---|
| XS | 5'1" – 5'6" |
| S | 5'5" – 5'10" |
| M | 5'9" – 6'2" |
| L | 6'1" – 6'5" |
Want to get technical? Full Geo / Specs here.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1810 reviews
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Product Reviews
★★★★★ 5
Great emergency kit for the car
Color: Blue
This roadside emergency kit is very useful to keep in the car. It comes with many important items for unexpected situations, feels well organized, and gives extra peace of mind while driving.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Nice gift
Color: Blue
New driver in the family so this was a decent gift for the price
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Great to have in car
Color: Blue
I’m so glad I bought this roadside assistance kit. It gives me so much peace of mind knowing I have the basics I might need in an emergency.
Everything is organized, easy to store in my trunk, and feels good quality. It’s one of those things you hope you never have to use — but you’re really thankful to have just in case.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
★★★★★ 5
Tons of stuff you need for an emergency!
Color: Blue
Perfect kit to throw in the back of the car.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
★★★★★ 5
Essential Emergency Kit That Every Vehicle Should Have
After experiencing a flat tire on a remote highway late at night, I realized how unprepared I was for roadside emergencies. That experience led me to purchase the AUTOWN Flat Tire Repair Kit, and I'm incredibly grateful to now have this comprehensive solution in my vehicle. This kit has already saved me twice from having to call for expensive roadside assistance, and the peace of mind it provides is absolutely priceless.
The 31-piece kit is impressively complete. It includes everything you need to handle a flat tire emergency, from the tire plugs themselves to insertion tools, rasps, and even extras that many cheaper kits omit. The variety of plug sizes means you can handle different types of punctures, and having multiple plugs means you're prepared for more than one emergency before needing to restock.
What sets this kit apart is the quality of the tools. The T-handle insertion tool feels solid and well-made, not like the flimsy plastic tools that come with some budget kits. The reamer tool cuts through damaged rubber cleanly and efficiently, making it easy to prepare the puncture hole for the plug. Having used cheaper tire repair kits in the past that broke during use, I really appreciate the durability and reliability of these tools.
The storage case is another thoughtful feature that makes this kit practical for vehicle storage. Everything fits neatly in the organized case with dedicated spaces for each component, which means you can quickly find what you need during an emergency. The case is compact enough to fit in a glove box or under a seat, but it's also rugged enough to withstand being rattled around in a trunk without falling apart.
Using this kit is surprisingly straightforward, even for someone without extensive automotive experience. The process involves identifying the puncture, using the reamer to prepare the hole, inserting the plug with the T-handle tool, and trimming the excess. I was able to successfully repair a puncture on my first attempt following the basic instructions, and the repair has held perfectly for months of daily driving.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026