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Lowest Price 31.8 mm 50 mm Black 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.

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

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Showing 45 products:

Kalloy Uno Jump Stem, (31.8) 10d X 50mm Black
Kalloy Uno Jump Stem, (31.8) 10d X 50mm Black

2D forged aluminum stem 4-bolt windowed faceplate, 51mm tall steerer clamp. 200g Item Specifications steerer dia.: 1-1/8" bar dia.: … read more

Currently Sold Out

your price $14.99

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Ritchey RL-1 4-Axis Stem (31.8mm Clamp, 50mm), Black
Ritchey RL-1 4-Axis Stem (31.8mm Clamp, 50mm), 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

Currently Sold Out

your price $29.95

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Easton Cycling EA50 Threadless Stem, 31.8 x 50mm, 1-1/8", +/-7d, Black
Easton Cycling EA50 Threadless Stem, 31.8 x 50mm, 1-1/8", +/-7d, Black

Forged EA50 alloy for toughness Patented DST distributes clamping forces over a larger area Clamp diameter: 31.8mm Weight: 160g … read more

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your price $44.99

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Salsa Guide Trail Stem- 50mm, 31.8 Clamp, 0 Degree, 1 1/8", Aluminum, Black
Salsa Guide Trail Stem- 50mm, 31.8 Clamp, 0 Degree, 1 1/8", Aluminum, BlackSalsa

The Guide Trail Stem translates your handlebar input into precise trail movements. It's an ideal choice for modern trail bikes that have a long front … read more

your price $45.00 + ships free

BuyBuyPART NUM 540072
Whisky No.7 MTN Stem 50mm 31.8 0 Degree Black
Whisky No.7 MTN Stem 50mm 31.8 0 Degree BlackWhisky Parts Co.

No.7 Mountain stems offer a stout connection for modern mountain bars. They match the simple aesthetic of other Whisky cockpit components.  3D-forged … read more

your price $48.00 + ships free

BuyBuyPART NUM 816099
Origin8 Fix8 OS Stem, 1-1/8x50x31.8, Black
Origin8 Fix8 OS Stem, 1-1/8x50x31.8, Black

AL6061 3D forged aluminum construction 4 bolt front loading design EN MTN safety certified Type: Mountain Threadless Fork … read more

15% offretail $57.99 your price $49.29 + ships free

BuyBuyPART NUM 523981
Spank Oozy Trail 2 Stem, 31.8mm x 50mm, 0 Degrees, Black
Spank Oozy Trail 2 Stem, 31.8mm x 50mm, 0 Degrees, Black

Burly 31.8mm bar clamp zone is chamfered to reduce stress risers and increase fatigue life in handelbars Iconic hourglass sectional profile … read more

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your price $49.99 + ships free

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Race Face Chester Stem: 50mm +/- 8 degree Black
Race Face Chester Stem: 50mm +/- 8 degree Black

Race Face Chester Stem: 50mm +/- 8 degree Black Item Specifications Color: Black Length: 50 Bar Clamp Diameter: 31.8 Stem Angle: +8 S.H.I.S. Stem … read more

your price $54.99 + ships free

BuyBuyPART NUM 790623
KS Ether Stem, 31.8 x 50mm, 0 Degrees, Black
KS Ether Stem, 31.8 x 50mm, 0 Degrees, BlackKind Shock

Forged and CNC machined aluminum with black on black graphics KS's tuned flex system offers the perfect balance of comfort and control when … read more

10% offretail $65.00 your price $58.50 + ships free

BuyBuyPART NUM 635187
Spank Spike Race 2 Stem, 31.8 x 50mm, Black
Spank Spike Race 2 Stem, 31.8 x 50mm, Black

2D forged MGR alloy is CNC weight optimized Chamfered bar clamps reduce stress risers in the critical bar/stem interface Shotpeen anodized … read more

your price $59.99 + ships free

BuyBuyPART NUM 374863
Truvativ Descendant 50mm 31.8mm Clamp 1-1/8" Stem Black
Truvativ Descendant 50mm 31.8mm Clamp 1-1/8" Stem Black

Item Specifications Color: Black S.H.I.S. Stem Clamp Diameter: 28.6 Bar Clamp Diameter (mm): 31.8 Length: 50 … read more

6% offretail $65.00 your price $60.99 + ships free

BuyBuyPART NUM 945504
TruVativ Holzfeller Stem 50mm 0deg 31 .8 1-1/8 Blast Black
TruVativ Holzfeller Stem 50mm 0deg 31 .8 1-1/8 Blast Black

TruVativ Holzfeller Mountain Stems are constructed of forged 66 aluminum. Forged AL-66 construction Height = 50mm, 290 grams for 60mm Item Specifications … read more

your price $62.00 + ships free

BuyBuyPART NUM 278253
Easton Cycling EA70 Threadless Stem, 31.8 x 50mm, 1-1/8', +/-7d, Black
Easton Cycling EA70 Threadless Stem, 31.8 x 50mm, 1-1/8', +/-7d, Black

Light, fast and good looking 3D forged EA70 aluminium and DST faceplate with Top-Lock technology Clamp diameter: 31.8mm Weight: … read more

Currently Sold Out

your price $69.99 + ships free

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Spank Spike Race Stem, (31.8) 0d X 50mm - Black
Spank Spike Race Stem, (31.8) 0d X 50mm - Black

Forged and CNC machined 7075-T6 Zirconium alloy Chamfered bar clamps increase handlebar fatigue life Installation note: the minimum … read more

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your price $75.00 + ships free

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Truvativ ATMOS 7K Stem, 31.8 x 50mm, 1-1/8", +/-6d, Black
Truvativ ATMOS 7K Stem, 31.8 x 50mm, 1-1/8", +/-6d, Black

Lightweight, performance stem designed for trail and cross-country use All fasteners are adjustable via a T25 tool for easy, quick adjustments … read more

your price $75.00 + ships free

BuyBuyPART NUM 757592
Spank Spike Bearclaw Stem, (31.8) 0d X 50mm - Blk/gry
Spank Spike Bearclaw Stem, (31.8) 0d X 50mm - Blk/gry

Darren Barrecloth signature model Forged and CNC machined 7075-T6 Zirconium alloy Chamfered bar clamps increase handlebar fatigue life … read more

Currently Sold Out

your price $79.00 + ships free

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Azonic Predator Stem, 31.8 x 50mm, Black
Azonic Predator Stem, 31.8 x 50mm, Black

CNC machined 6061 T6 aluminum with laser etched logos. 40mm stack Light and strong stem intended for Enduro use. 113g Item Specifications … read more

Currently Sold Out

your price $79.99

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DMR Defy2 Stem, (31.8) 5d X 50mm - Black
DMR Defy2 Stem, (31.8) 5d X 50mm - Black

CNC machined 6061 aluminum stem, ideal for All Mountain and Trail use Internal steerer clamp with low stack height (31mm) Super wide … read more

your price $82.00 + ships free

BuyBuyPART NUM 579856
Chromag HiFi Version 2 Stem: 50mm 31.8mm 1-1/8 +/- 0 degree Black
Chromag HiFi Version 2 Stem: 50mm 31.8mm 1-1/8 +/- 0 degree Black

HiFi V2 stems are forged and designed to be light and durable. Featuring a variety of clamp sizes and lengths, the HiFi V2 is the perfect complement … read more

10% offretail $94.00 your price $84.60 + ships free

BuyBuyPART NUM 717933
Easton Havoc 31.8 Stem 50mm +/- 0 degree Black
Easton Havoc 31.8 Stem 50mm +/- 0 degree Black

Easton Havoc Stem Distributed Stress Technology clamps are designed to match the needs of lightweight carbon and alloy handlebars Forged … read more

Currently Sold Out

15% offretail $99.99 your price $84.99 + ships free

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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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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."

See all Whisky Parts Co.

Kind Shock

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

See all Kind Shock

Thomson

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

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Industry Nine

"Industry Nine hubs are handmade in Asheville, NC"

See all Industry Nine

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

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

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

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