MenuMenuModern Bike

50 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.

SortSort

Showing 260 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
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
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

your price $69.99

BuyBuyPART NUM 188404
Spank Spike Race 2 Stem, 31.8 x 50mm, 0d, Green
Spank Spike Race 2 Stem, 31.8 x 50mm, 0d, Green

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

BuyBuyPART NUM 278227
Race Atlas 35 Direct Mount Stem, Black
Race Atlas 35 Direct Mount Stem, Black

RaceFace Atlas Stems Intended use is All Mountain, Freeride and Downhill 4-bolt bar clamp with interlocking u-shaped faceplate Opposing … read more

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

BuyBuyPART NUM 555478
Burgtec Enduro MK3 Stem, 35 x 50mm, Black
Burgtec Enduro MK3 Stem, 35 x 50mm, Black

Updated version sheds weight and adds sleek lines CNC machined aluminum with internal steerer clamping system Extra tall 48mm stack … read more

your price $119.99 + ships free

BuyBuyPART NUM 777422
Nitto NTC-225 Technomic Quill Stem, 225 x 50mm, 25.4, -18d, Polished Silver
Nitto NTC-225 Technomic Quill Stem, 225 x 50mm, 25.4, -18d, Polished Silver

High quality forged aluminum road quill stem 160mm from minimum insertion to top of quill Classic single bolt handlebar clamp … read more

your price $58.99 + ships free

BuyBuyPART NUM 143160
Renthal Apex 35 Stem: 35mm Clamp, 1-1/8" Steerer, 50mm Length, +/- 6 degree, Black/Gold
Renthal Apex 35 Stem: 35mm Clamp, 1-1/8" Steerer, 50mm Length, +/- 6 degree, Black/Gold

Combining All Mountain strength, Enduro stiffness and XC weight savings, this stem is ideal for any type of riding style. The unique 240 degree, two-piece … read more

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

your price $120.95 + ships free

BuyBuyPART NUM 944766
Sunlite Cruiser Double Stem, 8-1/2x21.1x22.2, Silver
Sunlite Cruiser Double Stem, 8-1/2x21.1x22.2, SilverSunlite

Alloy top 4-bolt EN CITY safety certified Type: Mountain Quill Quill Diameter: 21.1mm Stem Length: 50 Bar Clamp … read more

your price $25.00

BuyBuyPART NUM 642999
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
DMR Defy2 Stem, (35.0) 5d X 50mm - Black
DMR Defy2 Stem, (35.0) 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

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

retail $69.99 your price $69.00 + ships free

BuyBuyPART NUM 709643
Nitto Technomic Road Quill Stem: 50mm; 72 Deg 225mm Quill; 1"; 26.0
Nitto Technomic Road Quill Stem: 50mm; 72 Deg 225mm Quill; 1"; 26.0

Nitto Technomic forged aluminum stems are available for 25.4 or 26.0 bars. Forged aluminum 26.0mm stems will fit 26.0 handlebars and … read more

StarStarStarStarStar 4.9 of 5 ( 7 ) 4.9 of 5 stars average ( 7 reviews )

your price $47.99

BuyBuyPART NUM 400652
RaceFace Turbine R 35 Stem: 50mm x 35 +/- 0 degree, Black
RaceFace Turbine R 35 Stem: 50mm x 35 +/- 0 degree, Black

Take Raceface's popular Turbine 35mm stem and turn the volume up to R. Increased strength to handle the harshest aggressive all mountain riding combined … read more

your price $109.99 + ships free

BuyBuyPART NUM 848002
Thomson X4 Mountain 31.8 50mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 50mm 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 534897
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

your price $44.99

BuyBuyPART NUM 184459
Spank Spike Race 2 Stem, 31.8 x 50mm, Red
Spank Spike Race 2 Stem, 31.8 x 50mm, Red

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

your price $59.99 + ships free

BuyBuyPART NUM 162778
Black Op MX BMX Quill Stem - Black
Black Op MX BMX Quill Stem - Black

Material Alloy/Steel 4 bolt clamp BMX Quill Steerer 4-1/4" … read more

your price $37.99

BuyBuyPART NUM 343326
RaceFace Atlas Stem Black 50mm x 31.8
RaceFace Atlas Stem Black 50mm x 31.8

RaceFace Atlas Stems Intended use is All Mountain, Freeride and Downhill 4-bolt bar clamp with interlocking u-shaped faceplate Opposing bolts on … read more

your price $99.99 + ships free

BuyBuyPART NUM 720812
Origin8 Fix8 Threadless Stem, 1-1/8x50x25.4, Black
Origin8 Fix8 Threadless Stem, 1-1/8x50x25.4, Black

4-bolt face clamp 50mm length 33mm stack height Forged alloy construction 25.4mm CNC face clamp EN MTN safety certified … read more

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

15% offretail $48.59 your price $41.39

BuyBuyPART NUM 110219
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 $69.99 + ships free

BuyBuyPART NUM 579856
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."

See all Salsa

Sunlite

"Every year bikes change, styles and trends evolve, old bikes are in need of repairs and new bikes are waiting for that personal touch. We provide the means to keep your bike on the road and fun to ride!"

See all Sunlite

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.

Thomson

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

See all Thomson

Kind Shock

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

See all Kind Shock

Industry Nine

"Industry Nine hubs are handmade in Asheville, NC"

See all Industry Nine

Eclat

"Simplicity is the hardest design principle to follow; It's at the heart of our approach to eclat."

See all Eclat

Syntace

"Strong. Light. Smart."

See all Syntace

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.

See all Dimension

Full Speed Ahead

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

See all Full Speed Ahead

We The People

"W-T-P have always taken a lot of pride in ourselves and in building bikes that are capable of taking everything a rider throws at them. We are constantly at the forefront of developing and manufacturing materials that will with stand hard and furious riding and our designs are made to combat common breaks and bends."

See all We The People

Atomlab

"Built for Race"

See all Atomlab

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

This is the part number or identifier for this item from the manufacturer

Our Lowest Price - This product is ineligible for additional discounts or rebates.

Buy this product and your entire order ships for free.

Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.