Black 31.8 mm Bicycle Stems
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.
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Showing 792 products:
3T Integra LTD Stem 120mm 
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3T Integra LTD Stems Houses and protects Garmin Edge head units Clamp bolts are concealed by a shroud The shroud, at the nose of the stem, is easily … read more
Ships Freeyour price $349.99 + ships free
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Atomlab Pimplite Stem, 31.8 x 38mm, 1-1/8", Black
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Super light and beautifully CNC machined 6061 aluminum with oversized clamp. 142g Item Specifications steerer dia.: 1-1/8" bar dia.: 31.8mm … read more
22% offretail $75.55 your price $58.99
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Atomlab Pimplite Stem, 31.8 x 53mm, 1-1/8", Black Info
Super light and beautifully CNC machined 6061 aluminum with oversized clamp. 142g Item Specifications steerer dia.: 1-1/8" bar dia.: 31.8mm … read more
your price $75.55
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Azonic Barretta II Stem, (31.8) 40mm - Black Info
CNC machined 6061 T6 aluminum. 196g Item Specifications steerer dia.: 1-1/8" bar dia.: 31.8mm rise: 15 deg … read more
your price $64.99 + ships free
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Azonic Club Direct Mount Stem, (31.8) 45-50mm - Black Info
CNC machined 6061 T6 aluminum, 45-50mm adjustable length Fits BoXXer (2005-on), Fox 40, Dorado, and 888 (2012-on) dual crown forks … read more
17% offretail $89.99 your price $74.99 + ships free
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Azonic Predator Stem, 31.8 x 50mm, Black Info
CNC machined 6061 T6 aluminum with laser etched logos. 40mm stack Light and strong stem intended for Enduro use. 113g Item Specifications … read more
your price $79.99
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Azonic Predator Stem, 31.8 x 60mm, Black Info
CNC machined 6061 T6 aluminum with laser etched logos. 40mm stack Light and strong stem intended for Enduro use. 113g Item Specifications … read more
your price $79.99
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BOX Hollow Stem, (31.8) 0d X 53mm - Black Info
Forged, CNC machined 6061-T6 aluminum with hollow CrMo hex bolts Open skeletal design and a dual mid-bolt wedge mounting system Choose … read more
your price $99.95 + ships free
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BOX Hollow Stem, (31.8) 0d X 60mm - Black 
BuyPART NUM 503344
Forged, CNC machined 6061-T6 aluminum with hollow CrMo hex bolts Open skeletal design and a dual mid-bolt wedge mounting system Choose … read more
your price $99.99 + ships free
BuyPART NUM 503344 
Box One Front Load Stem, 48mm x 31.8mm x 28.6mm, Black BuyPART NUM 697072
Traditional front loading style BMX stems with a 31.8mm clamp, compatible with MTB and oversized BMX handlebars Constructed from 6061-T6 … read more
In Storeyour price $69.99 + ships free
BuyPART NUM 697072 
Box One Front Load Stem, 48mm x 31.8mm x 28.6mm, Silver BuyPART NUM 549097
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
BuyPART NUM 549097 
Box One Front Load Stem, 53mm x 31.8mm x 28.6mm, Black Info
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
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Box One Top Load Stem, 48mm x 31.8mm x 28.6mm, Black BuyPART NUM 792765
45 degree top loading design with a 31.8mm clamp for use with any standard MTB bar and over sized BMX bars Constructed from 6061-T6 aluminum … read more
your price $69.99 + ships free
BuyPART NUM 792765 
Box One Top Load Stem, 53mm x 31.8mm x 28.6mm, Black Info
45 degree top loading design with a 31.8mm clamp for use with any standard MTB bar and over sized BMX bars Constructed from 6061-T6 aluminum … read more
your price $69.99 + ships free
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Box One Top Load Stem, 60mm x 31.8mm x 28.6, Black
5 of 5
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5 of 5 stars
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45 degree top loading design with a 31.8mm clamp for use with any standard MTB bar and over sized BMX bars Constructed from 6061-T6 aluminum … read more
5 of 5
( 1 )
5 of 5 stars
( 1 review )
your price $69.99 + ships free
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Burgtec Enduro MK2 Stem, (31.8) 0d X 35mm - Black Info
CNC machined aluminum with internal steerer clamping system Extra tall 48mm stack height distributes clamping force over more of the steer … read more
your price $119.99 + ships free
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Burgtec Enduro MK2 Stem, (31.8) 0d X 50mm - Black Info
CNC machined aluminum with internal steerer clamping system Extra tall 48mm stack height distributes clamping force over more of the steer … read more
$27 offretail $119.99 your price $92.93
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Burgtec Enduro MK3 Stem, (31.8) 0d X 35mm - Black BuyPART NUM 934854
Updated version sheds weight and adds sleek lines CNC machined aluminum with internal steerer clamping system Extra tall 48mm stack … read more
your price $125.39 + ships free
BuyPART NUM 934854 
Burgtec Enduro MK3 Stem, (31.8) 0d X 42.5mm - Black BuyPART NUM 350845
Updated version sheds weight and adds sleek lines CNC machined aluminum with internal steerer clamping system Extra tall 48mm stack … read more
your price $125.39 + ships free
BuyPART NUM 350845 
Burgtec Enduro MK3 Stem, (31.8) 0d X 50mm - Black BuyPART NUM 314433
Updated version sheds weight and adds sleek lines CNC machined aluminum with internal steerer clamping system Extra tall 48mm stack … read more
your price $125.39 + ships free
BuyPART NUM 314433 
"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.'
Thomson is leading with innovative design for two primary markets - aerospace and cycling.
"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."
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.
"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."
"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."
"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."
"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!"
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.
Our Lowest Price - This product is ineligible for additional discounts or rebates.
In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.
Buy this product and your entire order ships for free.
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