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31.8 mm 90 mm Bicycle Stems

Bar clamp diameter is the diamater of the handlebar.

Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.

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Showing 130 products:

Ritchey WCS C220 Stem - 90mm, 31.8mm, -6 Degree, Aluminum, Matte Black
Ritchey WCS C220 Stem - 90mm, 31.8mm, -6 Degree, Aluminum, Matte BlackRitchey

The WCS C220 stem is easy to install and remove thanks to a press-fit handlebar clamp interface and forward-facing hardware. Bolt forces are aligned … read more

your price $109.95 + ships free

BuyBuyPART NUM 509818
Ritchey Classic C220 Stem 31.8mm +/- 6 degree HP Silver
Ritchey Classic C220 Stem 31.8mm +/- 6 degree HP SilverRitchey

C220 with forward facing bolt design for easy installation Coated chromoly hardware Item Specifications Color: Silver Bar Clamp … read more

your price $79.95 + ships free

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FSA K-Force OS-99 Carbon Stem 31.8x90mm
FSA K-Force OS-99 Carbon Stem 31.8x90mmFull Speed Ahead

FSA (Full Speed Ahead) K-Force Light OS-99 Stems 3D forged and CNC machined from AL-2014 UD carbon weave skin applied through CSI process … read more

$37 offretail $186.20 Ends 7/27! $148.96 + ships free

BuyBuyPART NUM 159864
Ritchey C-260 Superlogic Carbon Stem
Ritchey C-260 Superlogic Carbon StemRitchey

Ritchey Stems Matte UD carbon Stack: 42mm Item Specifications Color: Black Weight: 125g Intended Use: Road Bar Clamp Diameter: 31.8mm Stem … read more

your price $249.95 + ships free

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Redshift ShockStop +/-6 deg 90mm Stem: Black
Redshift ShockStop +/-6 deg 90mm Stem: Black

An adjustable stiffness suspension stem that smooths out the ride by reducing the affects of impacts and road vibrations. Unwanted vertical movement … read more

StarStarStarStarStar 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $189.99 + ships free

BuyBuyPART NUM 863400
Salsa Guide Stem 90mm 31.8 +/-6 degree Black
Salsa Guide Stem 90mm 31.8 +/-6 degree BlackSalsa

The Guide Stem is lightweight, reliable, and provides excellent steering response on the road or trail. Bead-blasted, then anodized, finish … read more

your price $40.00 + ships free

BuyBuyPART NUM 333149
Origin8 Everland MX/GX 25 degree Stem, 90x31.8, Black
Origin8 Everland MX/GX 25 degree Stem, 90x31.8, Black

High angle stems ideal for Monstercross or Gravel bikes equipped with off-road drop bars Raises drop bars eliminating the need for excessive … read more

15% offretail $43.99 your price $37.39 + ships free

BuyBuyPART NUM 579939
Ritchey Comp 4-Axis Stem - 90 mm, 31.8 Clamp, +30, 1 1/8", Alloy, Black
Ritchey Comp 4-Axis Stem - 90 mm, 31.8 Clamp, +30, 1 1/8", Alloy, BlackRitchey

Proven time after time to be a reliable, easily adjustable system that continues to outperform the competition, the 4-Axis stem is a sure fire go to for … read more

your price $49.95 + ships free

BuyBuyPART NUM 545613
Origin8 Everland MX/GX 40 degree Stem, 90x31.8, Black
Origin8 Everland MX/GX 40 degree Stem, 90x31.8, Black

High angle stems ideal for Monstercross or Gravel bikes equipped with off-road drop bars Raises drop bars eliminating the need for excessive … read more

15% offretail $43.99 your price $37.39 + ships free

BuyBuyPART NUM 506949
Ritchey Adjustable 4-Axis Stem
Ritchey Adjustable 4-Axis StemRitchey

+/-55 degree range of height adjustability Stainless bar and stem clamp bolts Item Specifications Weight: 270 Bar … read more

StarStarStarStarStar 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

your price $54.95 + ships free

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Ritchey WCS C220 25D Stem - 90mm, 31.8mm, +/- 25 Degree, Aluminum, Matte Black
Ritchey WCS C220 25D Stem - 90mm, 31.8mm, +/- 25 Degree, Aluminum, Matte BlackRitchey

The WCS C220 stem is easy to install and remove thanks to a press-fit handlebar clamp interface and forward-facing hardware. Bolt forces are aligned … read more

your price $109.95 + ships free

BuyBuyPART NUM 407061
Velo Orange Cigne Stem - 31.8mm Clamp, 90mm, Black
Velo Orange Cigne Stem - 31.8mm Clamp, 90mm, Black

Velo Orange Cigne Stem gets its name from the French word for swan. The shape is inspired by the old gooseneck LD stems by Ibis and Cunningham, but with … read more

your price $85.00 + ships free

BuyBuyPART NUM 174646
Whisky No.7 6d Stem 90mm +/- 6 degree 31.8 Black
Whisky No.7 6d Stem 90mm +/- 6 degree 31.8 BlackWhisky Parts Co.

The No.7 is a lightweight stem with clean aesthetics. Stems only have a few jobs to do - hold the bars, provide stable support and look good. Available … read more

your price $42.00 + ships free

BuyBuyPART NUM 268474
Thomson X4 Mountain 31.8 90mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 90mm 90 Degrees Black 1-1/8" Threadless StemThomson

Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating. … read more

StarStarStarStarStar 4 of 5 ( 2 ) 4 of 5 stars average ( 2 reviews )

your price $114.95 + ships free

BuyBuyPART NUM 788193
Easton EA50 Stem - 90mm, 31.8mm, +/- 17 Degree, Alloy, Black
Easton EA50 Stem - 90mm, 31.8mm, +/- 17 Degree, Alloy, Black

Easton delivers quality and sound engineering all the way down to this family of entry-level stems. Top Lock Faceplate provides secure and safe … read more

your price $44.99 + ships free

BuyBuyPART NUM 488189
Paul Component Engineering Boxcar Stem, 90mm +/- 15 degree 31.8mm 1-1/8" Threadless Black
Paul Component Engineering Boxcar Stem, 90mm +/- 15 degree 31.8mm 1-1/8" Threadless Black

Paul Component Engineering Boxcar Stem, 90mm +/- 15 degree 31.8mm 1-1/8" Threadless Black Item Specifications Color: Black Weight: 172 Length: 90 … read more

your price $147.50 + ships free

BuyBuyPART NUM 971591
Paul Components Boxcar Stem (31.8) 15d X 90mm - Silver
Paul Components Boxcar Stem (31.8) 15d X 90mm - Silver

The perfect combination of stiffness, strength, and reasonable weight Made with US sourced 2024 aircraft alloy All screws are high … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $147.50 + ships free

BuyBuyPART NUM 337356
Ritchey RL-1 4-Axis Stem (31.8mm Clamp, 90mm), Black
Ritchey RL-1 4-Axis Stem (31.8mm Clamp, 90mm), BlackRitchey

With its unique faceplate design, the Ritchey 4-Axis stem was a game-changer when it was first released many years ago. Today, the OE 4-Axis-44 stem … read more

your price $29.95

BuyBuyPART NUM 861523
MSW 17 Stem: 90mm 31.8 x 17d, 1-1/8, Black
MSW 17 Stem: 90mm 31.8 x 17d, 1-1/8, Black

MSW 17 degree stems raise the bar--literally--for what riders can expect from an inexpensive stem. Available in lengths from 60-120mm for custom-fitting. … read more

your price $36.99 + ships free

BuyBuyPART NUM 220348
Ritchey WCS C220 84D Stem: 90mm, +/- 6, 31.8, 1-1/8, Blatte
Ritchey WCS C220 84D Stem: 90mm, +/- 6, 31.8, 1-1/8, BlatteRitchey

Coated chromoly hardware 3D forged 2014 alloy C220 with forward facing bolt design for easy installation Item Specifications … read more

your price $109.95 + ships free

BuyBuyPART NUM 272964
Ritchey

"Ritchey bicycle components have been raced to victory in some of the biggest cycling competitions in the world including the UCI World Championships, the Tour de France and the Olympics and it all began in a simple garage in Menlo Park, California with Tom Ritchey.'

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Full Speed Ahead

"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."

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Salsa

"At Salsa, we believe a sense of adventure makes life better. The bicycle can be so much more than just a bike; it's a path to new places, new people, and amazing experiences."

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Whisky Parts Co.

"Whisky Parts Co. makes high quality carbon components designed with unique features that help you do more with your bike and stand out from the rest. We believe that our work can help every rider find a new level of confidence and performance with our sturdy and lightweight forks, bars, rims and more. So whether you are building a new bike or upgrading one you already have, you'll find an uncommon attention to detail in every product we offer."

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Thomson

Thomson is leading with innovative design for two primary markets - aerospace and cycling.

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Cane Creek

"The world's best choose Cane Creek. A key element of Cane Creek's mission is to support the sport of cycling, including racing, charitable activities and cycling advocacy. Cane Creek believes strongly in the power of bicycles and their potential to effect positive change in our society. To that end, Cane Creek supports athletes and teams whose purpose encompasses more than competitive racing, such as getting more people on bikes, improving or promoting a healthy lifestyle, and making our world better through the use of a bike."

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Dimension

Dimension makes quality components to repair or custom-fit the vast majority of bikes being ridden today, and provide the accessories that make them fun to ride.

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We define color as the main color of the item. It may have accents or highlights in other colors.

In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.

These models are available for online purchasing and can be shipped directly to you.

Bar clamp diameter is the diamater of the handlebar.

Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.

S.H.I.S clamp diameter is the steerer tube diameter.

Stem angles are measured perpendicular to the clamp. For example, a 90 degree stem is straight. Sometimes, this may also be refered to as a 0 degree stem. If two measurements are listed, the stem can be flipped for angling up or down.

Stem Type

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