State Bicycle Co.  Oversized Stem - 31.8mm (Silver)
State Bicycle Co.Oversized Stem - 31.8mm (Silver)State Bicycle Co.Oversized Stem - 31.8mm (Silver)State Bicycle Co.Oversized Stem - 31.8mm (Silver)

State Bicycle Co. Oversized Stem - 31.8mm (Silver)

Stem from our Race-Inspired Black Label Series

Perfect for the street or the track, the Black Label Series components pack a heavy punch.
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A high-quality 3D forged alloy stem features a 4 bolt faceplate.

[FEATURES]

    • Length: 90mm
    • Rise: ±7º
    • Clamp Diameter: 31.8mm
    • Steer Tube Diameter: 1 1/8in

Weight: 161g

Risk-Free Purchase - State Bicycle Co. offers FREE EXCHANGES* -If this item doesn't work out, we'll send you a return label and exchange for free!

FAQ

Rider-owned in Phoenix, AZ since 2009. 5-year frame warranty on steel, aluminum & titanium · most in-stock bikes ship in 1 business day · 4.8/5 from 16,000+ reviews.

How does my bike show up, and do I need a shop?

That depends on how you order it:

  • With Pro-Build (select models: $79.99, or $129.99 on Carbon Road). Our mechanics in Phoenix face the frame, set up and bleed the hydraulic brakes, index the drivetrain, cut the steerer to our stock length and torque-check everything before it goes in the box. That's the shop work that usually runs $150–$300 locally. You bolt on the bars, seatpost, front wheel and pedals, set your hoods and wrap your tape: about 20–30 minutes with a hex set and a torque wrench. Pro-Build adds a 1–2 week build queue.
  • Without Pro-Build. Your bike ships mostly assembled, but it needs a full assembly and tune by a professional mechanic before it's ride-ready. Carbon, titanium and AXS builds that skip Pro-Build arrive unassembled with an uncut steerer, so your shop can build them to your exact fit.

Either way, a professional build is safer, rides better, and unlocks our better warranty tier (see below).

How Pro-Build works · Find a shop near you

What does the warranty cover?

Every State bike comes with our Standard Limited Warranty against manufacturing defects for the original owner. No registration required.

  • Steel, aluminum & titanium frames and forks: 5 years
  • Carbon frames and forks: 1 year (2 years with ProBuild Advantage)
  • Non-consumable parts (cranks, wheels, hubs, bars, stem, seatpost, pedals): 1 year

Not covered: wear items (tires, tubes, chains, brake pads, grips, bar tape, saddles, spokes, paint), rust on RAW finishes, crash damage, and labor or shipping costs. Full warranty details

What is ProBuild Advantage, and how do I get it?

It's our "you did it right" warranty tier for bikes that were professionally assembled and registered within 30 days of delivery. You get everything in the Standard warranty, plus:

  • 2 years on carbon frames and forks, instead of 1
  • Priority claim review: ProBuild claims go to the front of the line
  • Faster help with shifting or braking issues, without the "did you tighten that bolt?" back-and-forth
  • Shipping perks on approved warranty replacement parts
  • Discounted pricing on a replacement frame or bike for up to 5 years from delivery, if a crash wins

To activate it: add Pro-Build when you order, or have a local shop assemble your bike and keep the receipt. Then register your bike within 30 days of delivery with your serial number (engraved under the bottom bracket shell) and proof of assembly. If you ordered Pro-Build, our mechanics already did the build. You just register.

When will my bike ship?

Most in-stock bikes ship within 1 business day, and you'll get tracking as soon as yours is on its way. Adding Pro-Build puts your bike in our build queue for 1–2 weeks before it ships. Shipping is calculated at checkout from your location and the size of your order, and bikes go out by UPS or FedEx Ground.

Outside the U.S.? We ship worldwide, and duties and taxes are paid at checkout, so nothing is due on delivery. Shipping policy

What if it's not right? Returns & exchanges

You have 30 days from delivery to request a return or exchange. Bikes need to be unused, in like-new condition and in their original packaging.

  • Refunds: a return label fee is deducted ($45 for complete bikes), and original shipping isn't refundable.
  • Exchanges: issued as store credit. The return label fee applies here too.
  • Package Protection Plan (add it at checkout): covers loss and damage in transit, removes return label fees and deductions, and extends the window for exchanges and store credit to 60 days. Refunds stay at 30 days.

Pro-Build and other service work can't be refunded once it's done. Final sale, clearance and limited-run items can't be returned, and neither can international orders.

Start a return · Full return policy

Can I pay over time, or use HSA/FSA funds?

Yes. Financing with Bread Pay splits your bike into monthly payments, and you can pay it off early with no penalty (subject to credit approval). You may also be able to use pre-tax HSA/FSA dollars through Truemed. A short intake at checkout checks your eligibility, which depends on your plan. HSA/FSA guide

Which size do I need?

Geometry charts, size guides and full build specs for every model are on our Size Charts & Specs page. Between sizes, or running a tall stack or long stem? Get in touch before you order. Pro-Build cuts the steerer to our stock length, and that can't be undone.

Can I see one in person or get it built locally?

Use our dealer & shop locator to find a shop near you for a look in person, assembly or a tune-up.

Something arrived damaged or missing?

Email info@statebicycle.com within 30 days of delivery with your order number and photos of the item, the box damage and the shipping label, and our team will take care of you. If a part has failed, submit a warranty claim. You can also reach us at 1-855-55-STATE or through our contact page.

Customer Reviews

Based on 25 reviews
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C
Christian Daniels (Sacramento, US)
Old guys ride too

Finally, got the perfect fit. My daily commuter is smooth , nimble, lighter and sexy as hell. I did pair it with the black lable riser and wheelset. Great parts for the price. YES, this old timer still rides fixed and brake less 200 miles a week. Come on folks get your STATE gear and get out there.

E
Ephraim Dickinson (San Francisco, US)

Black Label Series: OS Stem - 31.8mm (Silver)

E
Eddy Vega (Alhambra, US)
Stem and post

Ordered the 90mm silver stem and 27.2 post for my RAW black label V2 .. love the color match , solid quality,

D
Doly Ombiga (Richmond, US)
SBC stem and lock

great stuff and looks good

J
Jussi P. (Melbourne, AU)
Good length, good angle

It's a stem. It works. The length is good and the angle is steep enough to make a proper difference when flipped. On my 4130 this stem is pretty much in line with the logo up (right), and has noticeably increased stack height when flipped with the logo down (left). Nice.

M
Matt Henley (Rockvale, US)
Great stem, just what I needed!

Great lightweight stem. Easy to mount and feels like quality

A
Angel Salazar (El Paso, US)
Great Stem!

Love the new stem, matches the black label bars and gives my bike the look I was going for. Great product, great price, fast shipping.

F
Fernando Hinojosa (San Diego, US)

State Bicycle Co. Oversized Stem - 31.8mm (Black)

O
Omar Alcantar (El Paso, US)
oversized stem

good

T
TrailSquatch007 (Goffstown, US)
Looks Good, Not too heavy, and won't Break!

Its a stem and a good one at that. The black label color scheme works great on any bike, but especially my 4130 All-Road. Makes the teal handle bar tape pop!