MenuMenuModern Bike

Black 70 mm 28.6 Bicycle Stems

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

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.

SortSort

Showing 88 products:

Salsa Guide Trail Stem- 70mm, 35.0 Clamp, 0 Degree, 1 1/8", Aluminum, Black
Salsa Guide Trail Stem- 70mm, 35.0 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 299039
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
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
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
Paul Component Engineering Boxcar Stem, 70mm +/- 15 degree 31.8mm 1-1/8" Threadless Black
Paul Component Engineering Boxcar Stem, 70mm +/- 15 degree 31.8mm 1-1/8" Threadless Black

Paul Component Engineering Boxcar Stem, 70mm +/- 15 degree 31.8mm 1-1/8" Threadless Black Item Specifications Color: Black Weight: 155 Length: 70 … read more

your price $147.50 + ships free

BuyBuyPART NUM 789584
Thomson X4 Mountain 31.8 70mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 70mm 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 541817
Whisky No.7 6d Stem 70mm +/- 6 degree 31.8 Black
Whisky No.7 6d Stem 70mm +/- 6 degree 31.8 BlackWhisky Parts Co.

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

your price $42.00 + ships free

BuyBuyPART NUM 626601
Ritchey Comp 4-Axis Stem - 70 mm, 31.8 Clamp, +30, 1 1/8", Alloy, Black
Ritchey Comp 4-Axis Stem - 70 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 4 of 5 ( 1 ) 4 of 5 stars ( 1 review )

your price $49.95 + ships free

BuyBuyPART NUM 766720
Origin8 Everland MX/GX 40 degree Stem, 70x31.8, Black
Origin8 Everland MX/GX 40 degree Stem, 70x31.8, 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

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

15% offretail $43.99 your price $37.39 + ships free

BuyBuyPART NUM 528736
FSA SL-K Drop Threadless Stem, 70 x 31.8mm, -20d, Black
FSA SL-K Drop Threadless Stem, 70 x 31.8mm, -20d, BlackFull Speed Ahead

2D forged and CNC machined from AL2014 4-bolt cold-forged alloy faceplate with chromoly hardware 28mm fork clamp stack height … read more

your price $124.00 + ships free

BuyBuyPART NUM 898339
FSA NS ACR Stem, 31.8 x 70mm, -6d, Black
FSA NS ACR Stem, 31.8 x 70mm, -6d, BlackFull Speed Ahead

Road and gravel stem featuring FSA`s Aerodynamic Cable Routing (ACR) AL6061-T6 body and faceplate with chromoly hardware Compatible … read more

your price $124.00 + ships free

BuyBuyPART NUM 529341
Salsa Guide Trail Stem- 70mm, 31.8 Clamp, 0 Degree, 1 1/8", Aluminum, Black
Salsa Guide Trail Stem- 70mm, 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 451578
Race Face Aeffect-R Stem, (35.0) 0d X 70mm Black
Race Face Aeffect-R Stem, (35.0) 0d X 70mm Black

Forged and machined 6061 aluminum 4-bolt face plate, opposing 2-bolt steerer clamp Item Specifications steerer dia.: 1-1/8" bar … read more

your price $64.99 + ships free

BuyBuyPART NUM 292146
Thomson Elite X4 Mountain Stem 70mm 100 Degrees 31.8 1-1/8" Threadless Black
Thomson Elite X4 Mountain Stem 70mm 100 Degrees 31.8 1-1/8" Threadless BlackThomson

31.8 bar clamp diameter with smooth edges for carbon bar compatibility Machined 7000 series extruded bar stock Bolts are custom heat treated with … read more

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

your price $114.95 + ships free

BuyBuyPART NUM 181963
EVO E-Tec Stem, 28.6mm, 70mm, ±7 degree, 25.4mm, Black
EVO E-Tec Stem, 28.6mm, 70mm, ±7 degree, 25.4mm, Black

3D forged alloy construction Fits 1-1/8 (28.6mm) steerer forks Fits 25.4mm handlebar clamp M6 Black hardware Weight: … read more

your price $35.99

BuyBuyPART NUM 874254
Race Face Aeffect 35 Stem: 70mm x 35 +/- 6 degree, Black
Race Face Aeffect 35 Stem: 70mm x 35 +/- 6 degree, Black

The Aeffect 35 stem is a new design that brings the advantages of a 35mm bar to the XC/Trail crowd at a mid-level pricepoint while maintaining a refined … read more

your price $54.99 + ships free

BuyBuyPART NUM 250724
Ritchey Comp 4-Axis Stem - 70 mm, 31.8 Clamp, +/-6, 1 1/8", Alloy, Black
Ritchey Comp 4-Axis Stem - 70 mm, 31.8 Clamp, +/-6, 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

your price $52.95 + ships free

BuyBuyPART NUM 879610
Race Face Turbine-R Stem, (35.0) 0d X 70mm - Black
Race Face Turbine-R Stem, (35.0) 0d X 70mm - Black

Rebranded Easton Haven stem, CNC machined aluminum with laser etched logos 4-bolt face plate, opposing 2-bolt steerer clamp. 138g (50mm) … read more

your price $109.99 + ships free

BuyBuyPART NUM 943086
Ritchey WCS C-220 Stem, (31.8) 73dx70 Matte Black
Ritchey WCS C-220 Stem, (31.8) 73dx70 Matte BlackRitchey

Patented 220-degree 4-bolt bar clamp reduces weight, increases stiffness and distributes stress more evenly 3-D net forged and internally … read more

your price $109.95 + ships free

BuyBuyPART NUM 488928
Sunlite Threadless Alloy Road Stem, 70 x 26, +/- 6 Degrees, Black
Sunlite Threadless Alloy Road Stem, 70 x 26, +/- 6 Degrees, BlackSunlite

3D forged 6061 alloy road stems in 6 or 17 degree angles Lightweight 4 bolt faceplate Type: Road Fork Diameter: 1-1/8" … read more

your price $27.99

BuyBuyPART NUM 761164
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

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

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

Thomson

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

See all Thomson

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.

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.'

See all Ritchey

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

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."

See all Cane Creek

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

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

These products are one of our best sellers.

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.