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80- mm 31.8 mm Bicycle Stems

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.

Bar clamp diameter is the diamater of the handlebar.

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Showing 90 products:

Origin8 Everland MX/GX 25 degree Stem, 80x31.8, Black
Origin8 Everland MX/GX 25 degree Stem, 80x31.8, 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 617684
Ritchey Comp 4-Axis Stem - 80 mm, 31.8 Clamp, +30, 1 1/8", Alloy, Black
Ritchey Comp 4-Axis Stem - 80 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 $44.95

BuyBuyPART NUM 756913
Origin8 Everland MX/GX 40 degree Stem, 80x31.8, Black
Origin8 Everland MX/GX 40 degree Stem, 80x31.8, 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 474084
MSW 17 Stem: 80mm 31.8 x 17d, 1-1/8, Black
MSW 17 Stem: 80mm 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 482740
Redshift Sports ShockStop Stem - 80mm, 31.8 Clamp, +/-6, 1 1/8", Aluminum, Black
Redshift Sports ShockStop Stem - 80mm, 31.8 Clamp, +/-6, 1 1/8", Aluminum, 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

your price $169.99 + ships free

BuyBuyPART NUM 609797
Ritchey Comp 4-Axis Stem - 80 mm, 31.8 Clamp, +/-6, 1 1/8", Alloy, Black
Ritchey Comp 4-Axis Stem - 80 mm, 31.8 Clamp, +/-6, 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 $44.95

BuyBuyPART NUM 981975
Kalloy Uno Ahead Adjustable Stem, 31.8x85mm, Black
Kalloy Uno Ahead Adjustable Stem, 31.8x85mm, Black

Kalloy Uno AS-4005 Adjustable Ahead Stem with Riser 13.8 x 85 mm Matte Black … read more

your price $31.99

BuyBuyPART NUM 441808
Easton EA50 Stem - 80mm, 31.8mm, +/- 17 Degree, Alloy, Black
Easton EA50 Stem - 80mm, 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 199856
Kalloy Uno AS-7AD Adjustable Stem, 31.8 x 80mm, Black
Kalloy Uno AS-7AD Adjustable Stem, 31.8 x 80mm, Black

Lightweight 3D forged 6061-T6 aluminum 4-bolt faceplate Includes top cap and bushings to adjust stem angle (+/ 8d, +/ 12d … read more

your price $23.19

BuyBuyPART NUM 517978
FSA Gossamer Stem - 80mm 31.8mm +/- 6 Degree Alloy Black
FSA Gossamer Stem - 80mm 31.8mm +/- 6 Degree Alloy BlackFull Speed Ahead

FSA (Full Speed Ahead) Gossamer Stems 3D forged and CNC machined from AL6061/T6 4-bolt cold forged front clamp diameter Chromoly hardware … read more

your price $63.00 + ships free

BuyBuyPART NUM 740492
FSA K-Force Light 2.0 Threadless Stem, 31.8 x 80mm, +/-6d, Black
FSA K-Force Light 2.0 Threadless Stem, 31.8 x 80mm, +/-6d, BlackFull Speed Ahead

The K-force Light 2.0 features a 6061-T6 alloy body, titanium hardware and carbon fiber faceplate Classic monochromatic dark grey and black … read more

your price $158.00 + ships free

BuyBuyPART NUM 268671
Ritchey Comp 4Axis-44 Stem - 80mm, 31.8mm, +17/-17, 1 1/4", Alloy, Matte Black
Ritchey Comp 4Axis-44 Stem - 80mm, 31.8mm, +17/-17, 1 1/4", Alloy, Matte BlackRitchey

Ritchey Comp 4Axis-44 stems. Item Specifications Length: 80 Color: Matte Black S.H.I.S. Stem Clamp Diameter: 31.8 Stem … read more

your price $49.95

BuyBuyPART NUM 612648
Thomson X4 80mm 90d 31.8 Black
Thomson X4 80mm 90d 31.8 BlackThomson

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 755644
Dimension Threadless Stem: 80mm; 83/97 Degree; 31.8; Silver
Dimension Threadless Stem: 80mm; 83/97 Degree; 31.8; SilverDimension

Dimension 31.8 Road Stems are fully forged 6061-T6 aluminum stems that have a 4-bolt handlebar clamp. 31.8mm can be used with 26.0 bars with additional … read more

StarStarStarStarStar 4.8 of 5 ( 21 ) 4.8 of 5 stars average ( 21 reviews )

your price $37.00 + ships free

BuyBuyPART NUM 792903
Ritchey Superlogic C260 84 Degree Stem: 80mm, +/-6, 31.8mm Bar Clamp, Matte Black
Ritchey Superlogic C260 84 Degree Stem: 80mm, +/-6, 31.8mm Bar Clamp, Matte BlackRitchey

The Ritchey Superlogic C260 Carbon Stem adds uses high modulus carbon fiber, increased boom diameter and a wider clamp. Item Specifications Color: … read more

your price $299.95 + ships free

BuyBuyPART NUM 535172
FSA NS ACR Stem, 31.8 x 80mm, -6d, Black
FSA NS ACR Stem, 31.8 x 80mm, -6d, BlackFull Speed Ahead

Road and gravel stem featuring FSA`s Aerodynamic Cable Routing (ACR) AL6061-T6 body and faceplate with chromoly hardware Compatible … read more

Currently Sold Out

your price $124.00 + ships free

InfoInfo
Dimension Threadless Stem: 80mm; 83/97 Degree; 31.8; Black
Dimension Threadless Stem: 80mm; 83/97 Degree; 31.8; BlackDimension

Dimension 31.8 Road Stems are fully forged 6061-T6 aluminum stems that have a 4-bolt handlebar clamp. 31.8mm can be used with 26.0 bars with additional … read more

StarStarStarStarStar 4.8 of 5 ( 21 ) 4.8 of 5 stars average ( 21 reviews )

your price $39.00 + ships free

BuyBuyPART NUM 221879
Ritchey WCS C220 Stem - 80mm, 31.8mm, -6 Degree, Aluminum, Matte Black
Ritchey WCS C220 Stem - 80mm, 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 $99.95 + ships free

BuyBuyPART NUM 684229
FSA KFX ST Threadless Road Stem, 31.8 x 80mm, -12d, Black
FSA KFX ST Threadless Road Stem, 31.8 x 80mm, -12d, BlackFull Speed Ahead

The KFX Stem is 3D forged and CNC-machined from AL2014 alloy that is then combined with a carbon structure using FSA CSI (Carbon Structural Integration) … read more

your price $163.00 + ships free

BuyBuyPART NUM 190379
Ritchey WCS Toyon Stem, 31.8 x 80mm, 83d, Matte Black
Ritchey WCS Toyon Stem, 31.8 x 80mm, 83d, Matte BlackRitchey

220 degrees of bar/stem interface for improved stress distribution 42mm steerer clamp height and 42mm faceplate width Equipped with … read more

your price $99.95 + ships free

BuyBuyPART NUM 148266
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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Thomson

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

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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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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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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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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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