MenuMenuModern Bike

31.8 mm Blue Bicycle Stems

Bar clamp diameter is the diamater of the handlebar.

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

SortSort

Showing 49 products:

Industry Nine A318 Stem, (31.8) 30mm - Blue
Industry Nine A318 Stem, (31.8) 30mm - BlueIndustry Nine

7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more

your price $145.00 + ships free

BuyBuyPART NUM 125089
Industry Nine A318 Stem, (31.8) 40mm - Blue
Industry Nine A318 Stem, (31.8) 40mm - BlueIndustry Nine

7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more

your price $145.00 + ships free

BuyBuyPART NUM 792048
Industry Nine A318 Stem, 31.8 x 50mm, +/-5d, Turquoise
Industry Nine A318 Stem, 31.8 x 50mm, +/-5d, TurquoiseIndustry Nine

7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more

your price $145.00 + ships free

BuyBuyPART NUM 159408
Spank Spoon 318 Stem - 33mm, 31.8 Clamp, +/-0, Blue
Spank Spoon 318 Stem - 33mm, 31.8 Clamp, +/-0, Blue

Spank Spoon Stems feature unique style, modern geometry, and rock-solid construction, without the heavy price tag suitable for all disciplines. … read more

your price $59.99 + ships free

BuyBuyPART NUM 958955
Spank Spoon 2 Stem, 31.8 x 40mm, 0°, Blue
Spank Spoon 2 Stem, 31.8 x 40mm, 0°, Blue

Strong yet competitively lightweight alloy stem for all disciplines Unique style, modern geometry and rock-solid construction Chamfered … read more

your price $45.99 + ships free

BuyBuyPART NUM 392773
RaceFace Atlas Stem Blue 50mm x 31.8
RaceFace Atlas Stem Blue 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

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

BuyBuyPART NUM 191283
ProTaper ATAC Stem, 31.8 x 70mm, +/-5d, Limited Edition Turquoise
ProTaper ATAC Stem, 31.8 x 70mm, +/-5d, Limited Edition Turquoise

The ATAC is back. One of the oldest names in the high-end stem game has returned. And this time it's all blinged out with titanium hardware and … read more

your price $149.99 + ships free

BuyBuyPART NUM 477915
Spank Spike Race 2 Stem - 35mm 0 Degree Alloy Blue
Spank Spike Race 2 Stem - 35mm 0 Degree Alloy Blue

Spank's Spike stem is among the shortest available to better fit the latest generation of super long bikes and super wide bars. Included Snap-Fit … read more

your price $59.99 + ships free

BuyBuyPART NUM 457217
RaceFace Atlas Stem Blue 65mm x 31.8
RaceFace Atlas Stem Blue 65mm 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

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

BuyBuyPART NUM 478058
Industry Nine A318 Stem, (31.8) 30mm - Turquoise
Industry Nine A318 Stem, (31.8) 30mm - TurquoiseIndustry Nine

7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina 180 degree clamp wrap with high strength 316 stainless … read more

your price $145.00 + ships free

BuyBuyPART NUM 677527
Hope XC Stem - 70mm, 31.8 Clamp, +/-0, 1 1/8", Blue
Hope XC Stem - 70mm, 31.8 Clamp, +/-0, 1 1/8", Blue

Hope XC stem is optimised for the perfect balance of weight and stiffness. Gone are the days that XC meant noodly handling. Our new stem is designed to … read more

Currently Sold Out

$7 offretail $120.00 your price $112.99 + ships free

InfoInfo
Hope Freeride Stem, 35mm 0 Degree 1-1/8" Threadless Blue
Hope Freeride Stem, 35mm 0 Degree 1-1/8" Threadless Blue

10.9 DIN chromoly bolts Opposing steerer and moto-style handlebar clamp for exceptionally rigid steering characteristics CNC machined from solid billet … read more

$20 offretail $133.60 your price $112.99 + ships free

BuyBuyPART NUM 547688
Spank Spike Race 2 Stem, 31.8 x 50mm, Blue
Spank Spike Race 2 Stem, 31.8 x 50mm, Blue

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 667386
Spank Spoon 318 Stem - 43mm, 31.8 Clamp, +/-0, Blue
Spank Spoon 318 Stem - 43mm, 31.8 Clamp, +/-0, Blue

Spank Spoon Stems feature unique style, modern geometry, and rock-solid construction, without the heavy price tag suitable for all disciplines. … read more

your price $59.99 + ships free

BuyBuyPART NUM 550033
Deity Cavity 35mm (31.8) Stem - Blue
Deity Cavity 35mm (31.8) Stem - Blue

Machined from 6061 T6 aluminum Short 33mm stack height and 55mm wide faceplate for increased stiffness with wide handlebars Features … read more

your price $99.99 + ships free

BuyBuyPART NUM 921573
Deity Copperhead 50mm 31.8 Stem Blue
Deity Copperhead 50mm 31.8 Stem Blue

Even lighter than the Cavity stem Machined from 6061 T6 aluminum Short 30mm stack height and 55mm wide faceplate for increased stiffness … read more

your price $104.99 + ships free

BuyBuyPART NUM 933909
Box One Top Load Stem, 48mm x 31.8mm x 28.6mm, Blue
Box One Top Load Stem, 48mm x 31.8mm x 28.6mm, Blue

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

BuyBuyPART NUM 206793
Deity Cavity 50mm (31.8) Stem - Blue
Deity Cavity 50mm (31.8) Stem - Blue

Machined from 6061 T6 aluminum Short 33mm stack height and 55mm wide faceplate for increased stiffness with wide handlebars Features … read more

your price $99.99 + ships free

BuyBuyPART NUM 424896
Box One Top Load Stem, 53mm x 31.8mm x 28.6mm, Blue
Box One Top Load Stem, 53mm x 31.8mm x 28.6mm, Blue

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

BuyBuyPART NUM 742140
Chromag Riza Stem, 45 x 28.6, 90 Degree, Blue
Chromag Riza Stem, 45 x 28.6, 90 Degree, Blue

M6 bolts Wide clamping area spreads load over large area 1 piece faceplate CNC machined in Whistler, Canada Faded edges … read more

$13 offretail $135.00 your price $121.50 + ships free

BuyBuyPART NUM 674993
Industry Nine

"Industry Nine hubs are handmade in Asheville, NC"

See all Industry Nine

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

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.

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.