ProTaper 50 mm Bicycle Stems
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.
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Showing 6 products:
ProTaper ATAC Threadless Stem, 1-1/8", 31.8 x 50mm, +/-5d, Black 
BuyPART NUM 304943
Ultralight at 90g (50mm) Includes titanium hardware Laser-etched graphics Item Specifications steerer dia.: 1-1/8" bar dia.: … read more
Ships Freeyour price $149.99 + ships free
BuyPART NUM 304943 
ProTaper ATAC Stem, 31.8 x 50mm, +/-5d, Limited Edition Turquoise BuyPART NUM 524369
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
BuyPART NUM 524369 
ProTaper ATAC Stem, 31.8 x 50mm, +/-5d, Limited Edition Polished BuyPART NUM 976416
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
BuyPART NUM 976416 
ProTaper Stem 35 x 50mm, 28.6, Stealth Black 
Info
3D forged and machined 6061 alloy construction A2 stainless Torx bolts Item Specifications steerer dia.: 1-1/8" … read more
5% offretail $104.99 your price $99.99 + ships free
Info 
ProTaper Stem 31.8 x 50mm, 28.6, Stealth Black Info
3D forged and machined 6061 alloy construction A2 stainless Torx bolts Item Specifications steerer dia.: 1-1/8" bar dia.: 31.8mm … read more
your price $119.99 + ships free
Info 
ProTaper Mountain Threadless Stem, 50 x 31.8 x 28.6, Black Info
3D forged and machined 6061 construction with a focus on a low weight yet durable design 4 bolt face plate with Torx bolts and ProTaper … read more
your price $99.99 + ships free
Info 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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