State Bicycle Co. 4130 Trail SRAM Eagle AXS in Sagebrush Green, drive side profile
4130 Trail SRAM Eagle AXS Sagebrush Green, drive side three quarter view
Front wheel of the Sagebrush Green AXS build with the RockShox Psylo Silver RC fork lower, Tektro caliper and WTB Trailboss tire
Rear wheel of the Sagebrush Green AXS build with the SRAM XS-1270 10 to 52T cassette and hangerless Eagle Transmission derailleur
Bottom bracket junction of the Sagebrush Green AXS build with the State 32T narrow wide chainring and 73mm threaded shell
Head on view of the Sagebrush Green AXS build showing the 770mm low rise handlebar and the RockShox Psylo fork
Seat tube and head tube of the Sagebrush Green AXS build with the State logo and head badge, against a corten steel wall
SRAM S1000 Eagle Transmission derailleur mounted straight through the frame on the Sagebrush Green AXS build, with no derailleur hanger
4130 Trail SRAM Eagle AXS Sagebrush Green leaning against a corten steel wall
Handlebar, stem and fork crown of the Sagebrush Green AXS build seen from above
Rear triangle of the Sagebrush Green AXS build from behind, showing tire clearance between the seat stays
4130 Trail SRAM Eagle AXS Sagebrush Green on a concrete step against a corten steel wall
State Bicycle Co. 4130 Trail SRAM Eagle AXS in Sagebrush Green, drive side profile
4130 Trail SRAM Eagle AXS Sagebrush Green, drive side three quarter view
Front wheel of the Sagebrush Green AXS build with the RockShox Psylo Silver RC fork lower, Tektro caliper and WTB Trailboss tire
Rear wheel of the Sagebrush Green AXS build with the SRAM XS-1270 10 to 52T cassette and hangerless Eagle Transmission derailleur
Bottom bracket junction of the Sagebrush Green AXS build with the State 32T narrow wide chainring and 73mm threaded shell
Head on view of the Sagebrush Green AXS build showing the 770mm low rise handlebar and the RockShox Psylo fork
Seat tube and head tube of the Sagebrush Green AXS build with the State logo and head badge, against a corten steel wall
SRAM S1000 Eagle Transmission derailleur mounted straight through the frame on the Sagebrush Green AXS build, with no derailleur hanger
4130 Trail SRAM Eagle AXS Sagebrush Green leaning against a corten steel wall
Handlebar, stem and fork crown of the Sagebrush Green AXS build seen from above
Rear triangle of the Sagebrush Green AXS build from behind, showing tire clearance between the seat stays
4130 Trail SRAM Eagle AXS Sagebrush Green on a concrete step against a corten steel wall
State Bicycle Co.

State Bicycle Co. 4130 Trail Mountain Bike Sagebrush Green SRAM Eagle AXS | Wireless 12-Speed Chromoly Hardtail

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Every State bike can come back within 30 days of purchase. It needs to be like new, unridden, and in its original packaging.

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Call before you order and we will walk you through the fit chart. It is the question we get asked most.

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Full Manufacturer Backing: State Bicycle Co.
Every bike we sell carries State Bicycle Co.’s own Limited Warranty against manufacturing defects, from the date you receive it. It covers the original purchaser and is not transferable.

Standard coverage, on every bike:

  • 5 years, frame and fork: steel, aluminium and titanium frames and forks.
  • 1 year, carbon frame and fork: extended to 2 years under ProBuild, below.
  • 1 year, components: non-consumable parts — crankset, pedals, bars, stem, seatpost, wheels, hubs and carbon forks.
  • 18 months, eBike system: motor, electronics and battery.

ProBuild: optional, free, and worth doing
ProBuild is not something you buy and it is not required for your warranty to be valid. It is an upgraded tier State unlocks when any professional bike shop assembles the bike and you register it with State within 30 days of delivery. Your local shop counts.

  • Carbon frames and forks go from 1 year to 2 years.
  • Priority claim review, ahead of unregistered bikes.
  • Free or discounted shipping on approved warranty parts.
  • Discounted replacement pricing for up to 5 years, even when the damage is a crash rather than a defect.

What is not covered
Normal wear and tear on any bike: tires, tubes, chains, brake pads, grips, bar tape, saddles, spokes, and paint or cosmetic finish. Nor is crash and impact damage, improper assembly or adjustment, lack of maintenance, modifications, or incompatible parts. Shop labour is the rider’s responsibility under either tier. RAW finish steel frames are not covered against rust — that is the finish behaving as intended.

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Don’t sweat the paperwork. Email your proof of assembly and order details to support@belcopia.com and our team will handle the registration with State for you, so the ProBuild tier is active before you need it. You will need your serial number, which is engraved on the underside of the bottom bracket shell.

FrameDouble butted 4130 chromoly steel with a UDH dropout the derailleur mounts straight through.
GearingSRAM Eagle Transmission AXS, a 32T ring with a 10 to 52T cassette.
TiresWTB Trailboss TCS, 29 x 2.4 inch, tubeless ready.
BrakesTektro HD-M275 hydraulic disc, 180mm rotors front and rear.
SizesFour sizes, XS/S to XL, for riders 5 foot 1 to 6 foot 5.
CompareFit & sizeSpecificationWhat's in the Box

Fit

Find your size

Sizes overlap on purpose. Between two, the smaller is the more playful bike and the larger is the more stable one at speed. Every size shares a 426.5mm chain stay, a 65 degree head angle and a 44mm fork offset, so the handling stays consistent across the range.

Geometry
4130 Trail Sagebrush Green SRAM Eagle AXS

4130 Trail Sagebrush Green SRAM Eagle AXS Overview

The State Bicycle Co. 4130 Trail in Sagebrush Green with SRAM Eagle AXS is the wireless build of State's chromoly hardtail, at $1,999.99. The frame, the 130mm RockShox Psylo Silver RC fork, the Tektro hydraulics and the WTB i30 wheels are the same as the cable bikes. The drivetrain is not.

SRAM S1000 Eagle Transmission is hangerless. The derailleur mounts straight through the UDH dropout into the frame rather than hanging off a bracket, so there is no hanger to bend, no limit screws to set and no cable to route or replace. It shifts from an AXS Pod on the bar, and the battery and charger are in the box. The cassette is a 10 to 52T, which is 520 percent of range against 454 from the Shimano build.

Skip it if you would rather spend the $500 on wheels or a dropper. A cable drivetrain that is set up properly shifts well, and this frame takes one. What you buy here is a drivetrain that does not drift out of index and cannot bend a hanger.

Standards you can build on

Every interface on this bike is a current standard. A 73mm BSA threaded bottom bracket, a 31.6mm seat tube with internal routing, Boost 110 and 148mm hub spacing, and a 35mm bar clamp. The UDH dropout is not just compatible here, it is the mount: the Transmission derailleur bolts straight through it.

Questions before buying? Call 718.808.6415, Monday to Friday.

NO HANGER, NO LIMIT SCREWS

Every cable derailleur in the world hangs off a small aluminium bracket designed to bend before your frame does. It works, and it is also the part that quietly ruins rides: bend it slightly and the shifting goes vague, bend it properly and you are done for the day.

Eagle Transmission deletes it. The derailleur clamps around the rear axle and mounts through the UDH dropout into the frame itself, so the load goes into the frame rather than a sacrificial tab. There are no limit screws, because the derailleur knows where the frame is. Setup is a setup key and a firmware pairing rather than a barrel adjuster and a good ear.

4130 Trail SRAM Eagle AXS Sagebrush Green leaning against a corten steel wall4130 Trail SRAM Eagle AXS Sagebrush Green on a concrete step against a corten steel wall

130MM OF ROCKSHOX PSYLO

The fork is where cheap hardtails are usually cheap. A coil spring, 30mm legs and a damper that is really just a hole. This build gets a RockShox Psylo Silver RC: 130mm of travel on 35mm upper tubes, the diameter that stops the front end flexing when you brake hard into a rocky corner.

Inside it is a Solo Air spring you set with a shock pump to your own weight, and a Motion Control damper with an external compression adjuster. The steerer ships uncut so a shop can set your bar height before trimming it, on a 65 degree head angle.

Front wheel of the Sagebrush Green AXS build with the RockShox Psylo Silver RC fork lower, Tektro caliper and WTB Trailboss tireHandlebar, stem and fork crown of the Sagebrush Green AXS build seen from above
SRAM Eagle Transmission

SRAM Eagle Transmission

An S1000 T-Type derailleur that mounts through the frame. No hanger, no limit screws, nothing to index by ear.

10 to 52T, 520 Percent

10 to 52T, 520 Percent

An XS-1270 cassette on a 32T ring. A 10 tooth top gear no cable build offers, and a 52 for steep loose climbing.

770mm Low Rise Bar

770mm Low Rise Bar

A 35mm clamp on a short forged alloy stem. Wide and stable, with the AXS Pod in reach of your thumb.

Room For 2.6 Inch

Room For 2.6 Inch

The frame clears a 29 inch tire up to 2.6 inches, or a 27.5 up to 3.0. It ships on 29 x 2.4 inch.

Threaded Bottom Bracket

Threaded Bottom Bracket

A 73mm BSA shell that does not creak and unscrews with a tool every shop owns, behind a 32T narrow wide ring.

Frame Double butted 4130 chromoly steel, UDH dropout, 73mm BSA threaded bottom bracket, internal dropper routing, three bottle mounts
Fork RockShox Psylo Silver RC, 130mm travel, 35mm stanchions, Solo Air with Motion Control damper
Bottom Bracket 73mm BSA threaded
Crankset SBC 32T narrow wide, 165mm, direct mount
Cassette SRAM XS-1270 Eagle Transmission, 10 to 52T, HG driver
Chain SRAM Eagle T-Type
Rear Derailleur SRAM S1000 Eagle Transmission AXS, 12 speed, 52T max, hangerless Full Mount
Controller SRAM AXS Pod
Battery And Charger Included
Brakes Tektro HD-M275 hydraulic disc, 2 piston, 180mm rotors front and rear
Wheels WTB i30 TCS 29 inch tubeless ready rims, Boost 110 and 148mm hubs with sealed bearings, tubeless valves included
Tires WTB Trailboss TCS, 29 x 2.4 inch, tubeless ready
Handlebar SBC low rise alloy, 770mm width, 35mm clamp
Stem SBC 3D forged alloy, 35mm clamp
Seatpost SBC 31.6mm, quick release clamp
Saddle Polyurethane with steel rails
Pedals Not included
Max Tire Clearance Frame 29 x 2.6 inch or 27.5 x 3.0 inch, fork 29 x 2.6 inch
— Frame geometry — XS/S / S/M / M/L / XL
Chain Stay 426.5mm / 426.5mm / 426.5mm / 426.5mm
Fork Offset 44mm / 44mm / 44mm / 44mm
Head Tube 100mm / 110mm / 120mm / 130mm
Head Tube Angle 65° / 65° / 65° / 65°
Seat Tube 380mm / 405mm / 430mm / 460mm
Seat Tube Angle 74.5° / 74.4° / 74.4° / 74.4°
Top Tube (Effective) 594.7mm / 622.6mm / 645.5mm / 673.3mm
— Rider height — 5'1" - 5'5" / 5'5" - 5'10" / 5'10" - 6'1" / 6'1" - 6'5"

WHAT'S IN THE BOX

4130 Trail Complete Bike

Ships partially unassembled. It needs the crank and front wheel fitted, the fork set up and the steerer cut to your height. State recommends professional assembly and so do we.

AXS Battery And Charger

The SRAM AXS battery and its charger are in the box, and the Pod's coin cell is already fitted.

Belcopia Support

We are an authorized State Bicycle Co. dealer, so every bike is backed by State’s own warranty. Questions before or after the sale, call 718.808.6415, Monday to Friday.

Questions before buying

What does hangerless actually mean?

The derailleur bolts directly through the frame's UDH dropout instead of hanging off a small aluminium bracket. There is no hanger to bend in a crash and no limit screws to set, because the derailleur indexes itself against the frame. It is also stiffer, which is why Transmission shifts cleanly under load.

What size 4130 Trail should I get?

State lists the XS/S for riders 5 foot 1 to 5 foot 5, the S/M for 5 foot 5 to 5 foot 10, the M/L for 5 foot 10 to 6 foot 1, and the XL for 6 foot 1 to 6 foot 5. Sizes overlap on purpose. Between two, the smaller is the more playful bike and the larger is the more stable one at speed.

Is the bike in the photos the bike that ships?

The white background studio photos are. State's own outdoor press shots show a bike fitted with Industry Nine Sector Carbon wheels and a Seekrun S7 wireless dropper, which are paid upgrades and are not included. What ships is WTB i30 wheels on Boost hubs and a 31.6mm SBC seatpost with a quick release collar.

How is the battery handled?

The battery and charger are included. It is the same rechargeable AXS battery SRAM uses across its whole wireless range, so a spare from another bike drops straight in, and it swaps in a few seconds with no tools. The Pod runs a separate coin cell that lasts years rather than rides.

How much range does 10 to 52T give?

520 percent, against 454 percent from the Shimano 12 speed build and 418 percent from the MicroShift 11 speed. The 10 tooth top gear is the part the cable builds cannot match, and the 52 tooth bail out is there for steep loose climbing.

Can I fit a dropper post?

Yes. The seat tube is 31.6mm with internal routing already in the frame, so a cabled dropper routes through it and a wireless post needs no routing at all. Pairing a wireless post with Transmission leaves no shift or dropper cable on the bike at all.

4130 Trail on video

First Look: 4130 Trail Mountain Bike

State Bicycle Co.

State's first look film covers the 4130 Trail platform

Complete Your Ride

State Bicycle All-Road hydraulic disc brake set for flat bars — flat lay showing front and rear levers, calipers, and hydraulic lines
State Bicycle Co. - All-Road Hydraulic Disc Brake Set (For Flat Bars)
$89.99
State Bicycle Co. alloy platform pedals in black, pair showing edge and face views with oval cutout windows and traction pins
State Bicycle Co - Alloy Platform Pedals (2 Colors)
$24.99
Fizik Terra Argo X7 gravel saddle 150mm in black, three-quarter top view showing short-nose design and center cutout
Fizik Terra Argo X7 Saddle – 150mm
$89.99
State Bicycle Co. All-Road road saddle in black with narrow profile and chrome steel rails
All-Road Saddle
$34.99

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