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.
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Showing 48 products:
Spank Oozy Trail 2 Stem, 31.8mm x 50mm, 0 Degrees, Blue 
BuyPART NUM 290352
Burly 31.8mm bar clamp zone is chamfered to reduce stress risers and increase fatigue life in handelbars Iconic hourglass sectional profile … read more
Ships Freeyour price $49.99 + ships free
BuyPART NUM 290352 
Box One Top Load Stem, 48mm x 31.8mm x 28.6mm, Blue BuyPART NUM 206793
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
BuyPART NUM 206793 
Industry Nine A318 Stem, (31.8) 30mm - Blue
BuyPART NUM 125089
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina\n 180 degree clamp wrap with high strength 316 stainless … read more
your price $145.00 + ships free
BuyPART NUM 125089 
Spank Spike Race 2 Stem - 35mm 0 Degree Alloy Blue BuyPART NUM 457217
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 $49.90 + ships free
BuyPART NUM 457217 
Promax DA-1 Stem 90mm +/- 7 Degree 1-1/8 Threadless Blue BuyPART NUM 205129
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
your price $36.00 + ships free
BuyPART NUM 205129 
Deity Copperhead 35mm 31.8 Stem Blue BuyPART NUM 324322
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 $98.99 + ships free
BuyPART NUM 324322 
Promax Impact 53mm Top Load Stem for 31.8mm Bars Blue BuyPART NUM 654493
The new 31.8 Impact stem has a 45-degree top-load design for BMX racing and freestyle. Available in 48-, 53- and 60-millimeter extensions, the stems … read more
your price $50.00 + ships free
BuyPART NUM 654493 
Industry Nine A318 Stem, (31.8) 40mm - Blue BuyPART NUM 792048
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina\n 180 degree clamp wrap with high strength 316 stainless … read more
your price $145.00 + ships free
BuyPART NUM 792048 
Industry Nine A318 Stem, (31.8) 30mm - Turquoise BuyPART NUM 677527
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina\n 180 degree clamp wrap with high strength 316 stainless … read more
your price $145.00 + ships free
BuyPART NUM 677527 
Industry Nine A318 Stem, (31.8) 40mm - Turquoise BuyPART NUM 335766
7075 domestically sourced aluminum is machined, anodized and assembled in North Carolina\n 180 degree clamp wrap with high strength 316 stainless … read more
your price $145.00 + ships free
BuyPART NUM 335766 
Chromag Ranger V2 Stem, (31.8) 0d X 31mm - Blue BuyPART NUM 199745
Lightweight, super stiff All Mountain/Enduro stem Structurally optimized CNC machined 7075-T6 aluminum 4-bolt face plate, 2-bolt steerer … read more
$12 offretail $121.00 your price $108.90 + ships free
BuyPART NUM 199745 
Deity Copperhead 50mm 31.8 Stem Blue BuyPART NUM 933909
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 $98.99 + ships free
BuyPART NUM 933909 
Deity Components Cavity Stem - 35mm, 31.8mm, 0 Degree, Aluminum, Blue BuyPART NUM 382610
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 $88.99 + ships free
BuyPART NUM 382610 
Promax Banger 53mm Front Load Stem +/- 0 degree for 31.8mm Bars Blue BuyPART NUM 974383
The new 31.8 Banger stem is the world's first front-load stem with a 31.8 Ø clamp for BMX racing and freestyle. Available in 48-millimeter and 53-millimeter … read more
your price $50.00 + ships free
BuyPART NUM 974383 
Promax Banger 48mm Front Load Stem +/- 0 degree for 31.8mm Bars Blue BuyPART NUM 179145
The new 31.8 Banger stem is the world's first front-load stem with a 31.8 Ø clamp for BMX racing and freestyle. Available in 48-millimeter and 53-millimeter … read more
your price $50.00 + ships free
BuyPART NUM 179145 
Promax S-29 Stem 100mm 0 Degree 1-1/8" Blue BuyPART NUM 328757
Developed for longer-travel trail bikes, the S-29 offers the perfect configuration to set up the rider for maximum comfort and control. Featuring an … read more
your price $41.00 + ships free
BuyPART NUM 328757 
Promax S-29 Stem 90mm 0 Degree 1-1/8" Blue BuyPART NUM 764834
Developed for longer-travel trail bikes, the S-29 offers the perfect configuration to set up the rider for maximum comfort and control. Featuring an … read more
your price $41.00 + ships free
BuyPART NUM 764834 
Promax S-29 Stem 80mm 0 Degree 1-1/8" Blue BuyPART NUM 482752
Developed for longer-travel trail bikes, the S-29 offers the perfect configuration to set up the rider for maximum comfort and control. Featuring an … read more
your price $41.00 + ships free
BuyPART NUM 482752 
Promax S-29 Stem 70mm 0 Degree 1-1/8" Blue BuyPART NUM 792368
Developed for longer-travel trail bikes, the S-29 offers the perfect configuration to set up the rider for maximum comfort and control. Featuring an … read more
your price $41.00 + ships free
BuyPART NUM 792368 
Promax S-29 Stem 60mm 0 Degree 1-1/8" Blue BuyPART NUM 897355
Developed for longer-travel trail bikes, the S-29 offers the perfect configuration to set up the rider for maximum comfort and control. Featuring an … read more
your price $41.00 + ships free
BuyPART NUM 897355 
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
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