31.8 mm 100 mm 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.
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Showing 116 products:
Cirrus Cycles Kinekt Suspension Stem - 100, 31.8 Clamp, +30, 1-1/8", Alloy, Black 
BuyPART NUM 631002
The Kinekt Suspension Stem is designed to reduce arm, wrist, and shoulder discomfort. Adjustable, Compact, and built to last. Significantly reduces … read more
In Store
Cirrus Cycles ST100HR
Three remaining at this price
Ships Freeyour price $189.95 + ships free
BuyPART NUM 631002 
Soma Shotwell Stem (31.8) 83/7 X 100mm Silver BuyPART NUM 422025
3-D forged aluminum with 4-bolt bar clamp 83 or 7 degree flip flop design. 137g (80mm) Includes shim for 1" threadless steerers … read more
your price $44.99 + ships free
BuyPART NUM 422025 
Ritchey Classic C220 Stem 31.8mm +/- 6 degree HP Silver
Choose
C220 with forward facing bolt design for easy installation Coated chromoly hardware Item Specifications Color: Silver Bar Clamp … read more
your price $79.95 + ships free
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Ritchey C-260 Superlogic Carbon Stem Choose
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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Redshift ShockStop +30 100mm Stem: Black BuyPART NUM 513672
An adjustable stiffness suspension stem that smooths out the ride by reducing the affects of impacts and road vibrations. Unwanted vertical movement … read more
popularyour price $189.99 + ships free
BuyPART NUM 513672 
Redshift ShockStop +/-6 deg 100mm Stem: Black
5 of 5
( 2 )
5 of 5 stars average
( 2 reviews )
BuyPART NUM 575573
An adjustable stiffness suspension stem that smooths out the ride by reducing the affects of impacts and road vibrations. Unwanted vertical movement … read more
5 of 5
( 2 )
5 of 5 stars average
( 2 reviews )
your price $189.99 + ships free
BuyPART NUM 575573 
Cirrus Cycles Kinekt Suspension Stem - 100, 31.8 Clamp, +50, 1-1/8", Alloy, Black BuyPART NUM 710717
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
BuyPART NUM 710717 
Origin8 3D Pro Fit Stem, 100 x 31.8mm, +/-17d, Black BuyPART NUM 744041
Available in a variety of lengths, angles, and bar bores for the perfect fit Road or Mountain compatible 3D forged AL6061-T6 alloy … read more
15% offretail $41.99 your price $35.69 + ships free
BuyPART NUM 744041 
Origin8 Everland MX/GX 40 degree Stem, 100x31.8, Black BuyPART NUM 175945
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
BuyPART NUM 175945 
Thomson X4 Mountain 31.8 100mm 100 Degrees Black 1-1/8" Threadless Stem
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
BuyPART NUM 626800
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
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
your price $114.95 + ships free
BuyPART NUM 626800 
Ritchey WCS C220 Stem - 100mm, 31.8mm, -6 Degree, Aluminum, Matte Black, 1-1/4" Steerer Clamp BuyPART NUM 258016
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 $109.95 + ships free
BuyPART NUM 258016 
Ritchey Comp 4-Axis Stem - 100 mm, 31.8 Clamp, +30, 1 1/8", Alloy, Black
5 of 5
( 1 )
5 of 5 stars
( 1 review )
BuyPART NUM 784718
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
5 of 5
( 1 )
5 of 5 stars
( 1 review )
your price $49.95 + ships free
BuyPART NUM 784718 
Salsa Guide Stem 100mm 31.8 +/-6 degree Black
5 of 5
( 2 )
5 of 5 stars average
( 2 reviews )
BuyPART NUM 703813
The Guide Stem is lightweight, reliable, and provides excellent steering response on the road or trail. Bead-blasted, then anodized, finish … read more
5 of 5
( 2 )
5 of 5 stars average
( 2 reviews )
your price $40.00 + ships free
BuyPART NUM 703813 
Origin8 Everland MX/GX 25 degree Stem, 100x31.8, Black BuyPART NUM 347174
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
BuyPART NUM 347174 
Whisky No.7 6d Stem 100mm +/- 6 degree 31.8 Black
BuyPART NUM 195534
The No.7 is a lightweight stem with clean aesthetics. Stems only have a few jobs to do - hold the bars, provide stable support and look good. Available … read more
Lowest Priceyour price $42.00 + ships free
BuyPART NUM 195534 
MSW 17 Stem - 100mm, 31.8 Clamp, +/-17, 1 1/8", Aluminum, Silver BuyPART NUM 523519
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
BuyPART NUM 523519 
Ritchey Comp 4-Axis Stem - 100 mm, 31.8 Clamp, +/-6, 1 1/8", Alloy, Black BuyPART NUM 957409
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 $52.95 + ships free
BuyPART NUM 957409 
Thomson X4 Mountain 31.8 100mm 90 Degrees Black 1-1/8" Threadless Stem
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
BuyPART NUM 428098
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
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
your price $114.95 + ships free
BuyPART NUM 428098 
Ritchey Comp 4Axis-44 Stem - 100mm, 31.8mm, +17/-17, 1 1/4", Alloy, Matte Black BuyPART NUM 460308
Ritchey Comp 4Axis-44 stems. Item Specifications Material: Alloy Stem Angle (deg): +17, -17 Bar Clamp Diameter (mm): 31.8 … read more
your price $59.95 + ships free
BuyPART NUM 460308 
Thomson X4 Mountain 31.8 100mm 100 Degrees Silver 1-1/8" Threadless Stem
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
BuyPART NUM 202837
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
4 of 5
( 2 )
4 of 5 stars average
( 2 reviews )
your price $114.95 + ships free
BuyPART NUM 202837 
"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.
"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."
"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."
Save up to 20% off select FSA products, now through December 2nd!
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.
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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