MenuMenuModern Bike

31.8 mm Bicycle Stems

Bar clamp diameter is the diamater of the handlebar.

SortSort

Showing 696 products:

Whisky No.7 6d Stem 80mm +/- 6 degree 31.8 Black
Whisky No.7 6d Stem 80mm +/- 6 degree 31.8 Black

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 $40.00 + ships free

BuyBuyPART NUM 946897
Salsa Guide Stem 80mm 31.8 +/-6 degree Black
Salsa Guide Stem 80mm 31.8 +/-6 degree BlackSalsa

The Guide Stem is lightweight, reliable, and provides excellent steering response on the road or trail. Bead-blasted, then anodized, finish … read more

your price $40.00 + ships free

BuyBuyPART NUM 553752
Ritchey Comp 4-Axis 30D Stem: 60mm, +30 degrees, 31.8, 1-1/8, BB Black
Ritchey Comp 4-Axis 30D Stem: 60mm, +30 degrees, 31.8, 1-1/8, BB Black

Item Specifications Color: BB Black Weight: 170 Length: 60 Bar Clamp Diameter: 31.8 Stem Angle: +30 S.H.I.S. Stem Clamp Diameter: 28.6 Stack … read more

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

your price $39.95 + ships free

BuyBuyPART NUM 360324
Salsa Guide Trail Stem 60mm 31.8 +/-3 Degree Black
Salsa Guide Trail Stem 60mm 31.8 +/-3 Degree BlackSalsa

The Guide Trail Stem is lightweight, durable and provides excellent steering response. Available in super short lengths for use on new-school trail bikes … read more

your price $40.00 + ships free

BuyBuyPART NUM 237911
Salsa Guide Stem 65/115 31.8
Salsa Guide Stem 65/115 31.8Salsa

Salsa Guide Stems. The Guide Stem is lightweight, durable, and provides excellent steering response on the road or trail. 3D-forged for increased … read more

StarStarStarStarStar 4.8 of 5 ( 12 ) 4.8 of 5 stars average ( 12 reviews )

your price $40.00 + ships free

ChooseChoose
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 ( 1 ) 4 of 5 stars ( 1 review )

your price $114.95 + ships free

BuyBuyPART NUM 534897
RaceFace Ride XC Stem: 60mm;  84/96d; Black
RaceFace Ride XC Stem: 60mm; 84/96d; Black

The Ride stem is designed specifically for riders looking for Race Face engineering and quality at a value price point. Forged and shot … read more

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

15% offretail $29.99 your price $25.49 + ships free

BuyBuyPART NUM 486969
Thomson X4 Mountain 31.8 90mm 90 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 90mm 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 ( 1 ) 4 of 5 stars ( 1 review )

your price $114.95 + ships free

BuyBuyPART NUM 788193
Ritchey Adjustable 4-Axis Stem
Ritchey Adjustable 4-Axis Stem

Adjustable from +40 to -32 degrees Stainless bar and stem clamp bolts Item Specifications Weight: 270 Bar Clamp … read more

your price $49.95

ChooseChoose
RaceFace Turbine Stem: 60x31.8mm; 84/96;,Black
RaceFace Turbine Stem: 60x31.8mm; 84/96;,Black

RaceFace Stems Intended for XC, Trail and All Mountain use Machined to precision with 7075 aluminum for high strength & fatigue resistance at a very … read more

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

BuyBuyPART NUM 682152
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
Spank Spike Race Stem 35mm Length, 31.8 Bar Clamp, Matte Black Bearclaw Edition
Spank Spike Race Stem 35mm Length, 31.8 Bar Clamp, Matte Black Bearclaw Edition

Spank's Spike stem is among the shortest available to better fit the latest generation of super long bikes and super wide bars. 2D forged, micro … read more

your price $75.00 + ships free

BuyBuyPART NUM 718027
Thomson X4 Mountain 31.8 110mm 100 Degrees Black 1-1/8" Threadless Stem
Thomson X4 Mountain 31.8 110mm 100 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 ( 1 ) 4 of 5 stars ( 1 review )

your price $114.95 + ships free

BuyBuyPART NUM 647349
Ritchey Comp 4 Axis Stem: 120mm~ 84/96d~ 31.8~ BB Black
Ritchey Comp 4 Axis Stem: 120mm~ 84/96d~ 31.8~ BB Black

Ritchey Stems Item Specifications Color: Black Intended Use: Mountain Bar Clamp Diameter: 31.8mm Stem Angle: 84,96deg Stem Length: 120mm Defined … read more

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

your price $39.95 + ships free

BuyBuyPART NUM 571764
Dimension Threadless Stem: 110mm; 107 Degree; 31.8; Silver
Dimension Threadless Stem: 110mm; 107 Degree; 31.8; SilverDimension

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 ( 17 ) 4.8 of 5 stars average ( 17 reviews )

your price $32.00 + ships free

BuyBuyPART NUM 458435
Ritchey WCS C-220 Stem, (31.8) 73dx70 Matte Black
Ritchey WCS C-220 Stem, (31.8) 73dx70 Matte Black

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 $89.95 + ships free

BuyBuyPART NUM 488928
Thomson X2 31.8 130mm 73/107 Degrees Black 1-1/8" Threadless Road Stem
Thomson X2 31.8 130mm 73/107 Degrees Black 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $114.95 + ships free

BuyBuyPART NUM 875369
Thomson X2 31.8 130mm 80/100 Degrees Black 1-1/8" Threadless Road Stem
Thomson X2 31.8 130mm 80/100 Degrees Black 1-1/8" Threadless Road StemThomson

Thomson X2 Road Stem features a new steer tube clamp assembly that is lighter than the Elite style. 31.8 bar clamp diameter with smooth edges for carbon … read more

your price $114.95 + ships free

BuyBuyPART NUM 790414
Ritchey WCS 4-Axis 1 1/4" 31.8mm +/- 6 degree Black
Ritchey WCS 4-Axis 1 1/4" 31.8mm +/- 6 degree Black

Ritchey WCS 4-Axis Stems feature a contoured faceplate with four closely-spaced bolts, distributing flex and stress across a large clamping area, that … read more

your price $89.95 + ships free

BuyBuyPART NUM 458292
Zipp Service Course Road Stem 80mm, 84 or 96 degree, 31.8mm, Bead Blast Black
Zipp Service Course Road Stem 80mm, 84 or 96 degree, 31.8mm, Bead Blast Black

Zipp Speed Weaponry Stems Forged AL-7050 Forged AL-7050 Item Specifications Color: Bead Blast Black Weight: 130 Length: 80 Bar Clamp Diameter: … read more

your price $55.00 + ships free

BuyBuyPART NUM 438520
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

Thomson

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

See all Thomson

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

Answer

Answer BMX makes BMX racing components.

See all Answer

fizik

fi'zi:k is a racing brand. It represents beauty, speed, passion, freedom for those who race against each other, race against the clock and for enthusiast cyclists around the world who identify with the feeling of the fire of competition.

See all fizik

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

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.