MenuMenuModern Bike

Red 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.

SortSort

Showing 42 products:

Spank Spike Race 2 Stem, 31.8 x 50mm, Red
Spank Spike Race 2 Stem, 31.8 x 50mm, Red

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 162778
Industry Nine A318 Stem, 31.8 x 50mm, +/-5d,  Red
Industry Nine A318 Stem, 31.8 x 50mm, +/-5d, RedIndustry 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 280951
Industry Nine A318 Stem, (31.8) 40mm - Red
Industry Nine A318 Stem, (31.8) 40mm - RedIndustry 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 611735
Industry Nine A318 Stem, (31.8) 30mm - Red
Industry Nine A318 Stem, (31.8) 30mm - RedIndustry 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 364346
Deity Cavity 35mm (31.8) Stem - Red
Deity Cavity 35mm (31.8) Stem - Red

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 333245
Box One Top Load Stem, 53mm x 31.8mm x 28.6mm, Red
Box One Top Load Stem, 53mm x 31.8mm x 28.6mm, Red

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 576594
Hope Freeride Stem, 35mm 0 Degree 1-1/8" Threadless Red
Hope Freeride Stem, 35mm 0 Degree 1-1/8" Threadless Red

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

$28 offretail $133.60 your price $104.99 + ships free

BuyBuyPART NUM 877757
RaceFace Atlas Stem Red 50mm x 31.8
RaceFace Atlas Stem Red 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 562413
Promax DA-1 Stem 120mm +/- 7 Degree 1-1/8 Threadless Red
Promax DA-1 Stem 120mm +/- 7 Degree 1-1/8 Threadless Red

The DA-1 XC mountain bike is 3D cold forged, then CNC machined from 6061-T6 aluminum to create a lightweight and strong stem. Item Specifications … read more

33% offretail $36.00 your price $23.99 + ships free

BuyBuyPART NUM 441214
Spank Spoon 2 Stem, (31.8) 0dx40mm - Red
Spank Spoon 2 Stem, (31.8) 0dx40mm - Red

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 350496
Industry Nine A318 Stem, 1-1/8", 31.8 x 50mm, 5d, Red
Industry Nine A318 Stem, 1-1/8", 31.8 x 50mm, 5d, RedIndustry Nine

Crafted from domestically-sourced 7075 aluminum billet 180 degrees of handlebar contact on the stem body for twist-free security that will … read more

your price $155.00 + ships free

BuyBuyPART NUM 225274
Industry Nine A318 Stem, 1-1/8", 31.8 x 40mm, 6d, Red
Industry Nine A318 Stem, 1-1/8", 31.8 x 40mm, 6d, RedIndustry Nine

Crafted from domestically-sourced 7075 aluminum billet 180 degrees of handlebar contact on the stem body for twist-free security that will … read more

your price $155.00 + ships free

BuyBuyPART NUM 555794
Spank Spike Race 2 Stem - 35mm 0 Degree Alloy Red
Spank Spike Race 2 Stem - 35mm 0 Degree Alloy Red

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 340987
Chromag Riza Stem, 32 x 28.6, 90 Degree, Red
Chromag Riza Stem, 32 x 28.6, 90 Degree, Red

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 176020
Chromag RIZA Stem, (31.8) 90d X 45mm - Red
Chromag RIZA Stem, (31.8) 90d X 45mm - Red

CNC machined in Whistler, Canada from premium 6061 billet aluminum Features a new faded edge on the clamp face to help avoid hot spots and … read more

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

BuyBuyPART NUM 262128
Chromag RIZA Stem, (31.8) 90d X 38mm - Red
Chromag RIZA Stem, (31.8) 90d X 38mm - Red

CNC machined in Whistler, Canada from premium 6061 billet aluminum Features a new faded edge on the clamp face to help avoid hot spots and … read more

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

BuyBuyPART NUM 375987
Hope XC Stem - 70mm, 31.8 Clamp, +/-0, 1-1/8", Red
Hope XC Stem - 70mm, 31.8 Clamp, +/-0, 1-1/8", Red

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 … read more

your price $120.00 + ships free

BuyBuyPART NUM 639939
Deity Copperhead 50mm 31.8 Stem Red
Deity Copperhead 50mm 31.8 Stem Red

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 579927
Deity Components Cavity Stem - 50mm, 31.8mm, 0 Degree, Aluminum, Red
Deity Components Cavity Stem - 50mm, 31.8mm, 0 Degree, Aluminum, Red

The Cavity stem was developed with pain staking focus on strength, function and attention to detail. Tapered body for cleaner lines and weight reduction … read more

your price $94.99 + ships free

BuyBuyPART NUM 951000
Deity Cavity 50mm (31.8) Stem - Red
Deity Cavity 50mm (31.8) Stem - Red

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 408093
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

This is the part number or identifier for this item from the manufacturer

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.