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Available Black 28.6 31.8 mm Bicycle Stems

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

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

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

Bar clamp diameter is the diamater of the handlebar.

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Showing 477 products:

Renthal Duo Stem: 50mm 100d AluGold/Black 31.8
Renthal Duo Stem: 50mm 100d AluGold/Black 31.8

CNC machined from 6082 T6 aluminium alloy U-shape cradle clamp eliminates handlebar stress risers found with traditional stems Made in Cheshire … read more

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

your price $132.95 + ships free

BuyBuyPART NUM 235686
Gusset S2 AM Stem, 31.8 x 30mm, 1-1/8", Black
Gusset S2 AM Stem, 31.8 x 30mm, 1-1/8", Black

BTI Part Number: GU-6526 Vendor Part Number: ASGU2A23K Steerer Diameter: 1-1/8" Bar Diameter: 31.8 Rise: 0 Degrees … read more

your price $99.00 + ships free

BuyBuyPART NUM 335355
Promax Gent 31.8mm Stem, Length 60mm, 1-1/8" Threadless Black
Promax Gent 31.8mm Stem, Length 60mm, 1-1/8" Threadless Black

Promax Gent Stem Item Specifications Bar Clamp Diameter (mm): 31.8 Color: Black Length: 60 Material: Aluminum S.H.I.S. Stem Clamp Diameter: 28.6 … read more

your price $31.99 + ships free

BuyBuyPART NUM 535439
Thomson X4 Mountain 31.8 130mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 130mm 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 724444
FSA Afterburner Stem, (31.8) 78/12d X 70mm - Black
FSA Afterburner Stem, (31.8) 78/12d X 70mm - BlackFull Speed Ahead

3D forged, CNC machined 6061 aluminum CrMo hardware. 4-bolt alloy faceplate. 2-bolt steerer clamp Two tone black graphics on ±12 deg … read more

your price $80.00 + ships free

BuyBuyPART NUM 981412
Box One Front Load Stem, 48mm x 31.8mm x 28.6mm, Black
Box One Front Load Stem, 48mm x 31.8mm x 28.6mm, Black

Traditional front loading style BMX stems with a 31.8mm clamp, compatible with MTB and oversized BMX handlebars Constructed from 6061-T6 … read more

your price $69.99 + ships free

BuyBuyPART NUM 697072
Genetic Juzzi 2-Axis Adjustable Road Stem, (31.8) 120mm
Genetic Juzzi 2-Axis Adjustable Road Stem, (31.8) 120mm

Adjustable 7050 alloy road stem 2-axis pivoting system for setting ideal rise and reach Item Specifications steerer dia.: 1-1/8" … read more

14% offretail $69.95 your price $59.99 + ships free

BuyBuyPART NUM 671000
ProTaper Stem 31.8 x 30mm, 28.6, Stealth Black
ProTaper Stem 31.8 x 30mm, 28.6, Stealth Black

3D forged and machined 6061 alloy construction A2 stainless Torx bolts Item Specifications steerer dia.: 1-1/8" bar dia.: 31.8mm … read more

your price $104.99 + ships free

BuyBuyPART NUM 590926
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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Kalloy Uno Upshot Stem, (31.8) 35d X 110mm Black
Kalloy Uno Upshot Stem, (31.8) 35d X 110mm Black

Lightweight high rise 2D forged aluminum stem for comfort 4-bolt windowed faceplate, 40mm tall steerer clamp. Approximate weight: 160g … read more

your price $13.99

BuyBuyPART NUM 801402
Paul Components Boxcar Stem - 31.8 x 70mm,  Black
Paul Components Boxcar Stem - 31.8 x 70mm, Black

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

your price $147.50 + ships free

BuyBuyPART NUM 437421
Ritchey Comp 4-Axis Stem - 60 mm, 31.8 Clamp, +30, 1 1/8", Alloy, Black
Ritchey Comp 4-Axis Stem - 60 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

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

your price $49.95 + ships free

BuyBuyPART NUM 960951
Cirrus Cycles Kinekt Suspension Stem - 100, 31.8 Clamp, +30, 1-1/8", Alloy, Black
Cirrus Cycles Kinekt Suspension Stem - 100, 31.8 Clamp, +30, 1-1/8", Alloy, Black

The Kinekt Suspension Stem is designed to reduce arm, wrist, and shoulder discomfort. Adjustable, Compact, and built to last. Significantly reduces … read more

your price $189.95 + ships free

BuyBuyPART NUM 631002
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
Redshift ShockStop +30 100mm  Stem: Black
Redshift ShockStop +30 100mm 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

your price $189.99 + ships free

BuyBuyPART NUM 513672
Paul Components Boxcar Stem, (31.8) 7d X 80mm - Black
Paul Components Boxcar Stem, (31.8) 7d X 80mm - Black

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

your price $147.50 + ships free

BuyBuyPART NUM 778397
Redshift ShockStop +/-6 deg 100mm Stem: Black
Redshift ShockStop +/-6 deg 100mm 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 5 of 5 ( 2 ) 5 of 5 stars average ( 2 reviews )

your price $189.99 + ships free

BuyBuyPART NUM 575573
Origin8 Everland MX/GX 40 degree Stem, 60x31.8, Black
Origin8 Everland MX/GX 40 degree Stem, 60x31.8, 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 687703
Origin8 Throwdown MTB Stem, 35x31.8x28.6, Black
Origin8 Throwdown MTB Stem, 35x31.8x28.6, Black

Ideal for Trail, Enduro, and Downhill MTB applications 3D forged and CNC machined AL6061-T6 alloy construction Lightweight, extra-wide … read more

15% offretail $52.99 your price $45.09 + ships free

BuyBuyPART NUM 238226
Dimension Threadless Road Stem: 70mm; 125 Degree; Black; 1-1/8"; 31.8
Dimension Threadless Road Stem: 70mm; 125 Degree; Black; 1-1/8"; 31.8Dimension

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 ( 23 ) 4.8 of 5 stars average ( 23 reviews )

your price $39.00 + ships free

BuyBuyPART NUM 481683
Thomson

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

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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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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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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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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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Industry Nine

"Industry Nine hubs are handmade in Asheville, NC"

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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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Kind Shock

Kind Shock is an industry leader in suspension and dropper seat posts.

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

These products are one of our best sellers.

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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