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since 2002
In Stock & Ready To Ship — XT/Ultegra RT-MT800 Disc Rotors
Race Face Atlas MTB Stem Black - 50x0deg - 31.8mm Clamp
Race Face Atlas MTB Stem Red - 50x0deg - 31.8mm Clamp
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Race Face Atlas MTB Stem Black - 50x0deg - 31.8mm Clamp
Race Face Atlas MTB Stem Red - 50x0deg - 31.8mm Clamp

Race Face Atlas MTB Stem

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Race Face's Atlas MTB Stem is built from super strong machined 6061 aluminum, paired with an interlocking faceplate that transfers load through the stem body, not the bolts.

The ultimate in versatility, the high end Atlas stem is designed to bridge the needs of all-mountain and downhill rippers. Multiple length options, multiple color options and legendary strength make this stem pure fun no matter how or where you ride it.


  • Bar diameter: 31.8mm
  • 6061 aluminum
  • 40mm stack height
  • 50mm stem length
  • 1-1/8" steer tube diameter
  • Available in Black or Red colorway
  • 155g (50mm)

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Black - 50x0deg - 31.8mm Clamp

Mfg PartNum: ST12A31.850X0BLK 

Red - 50x0deg - 31.8mm Clamp

Mfg PartNum: ST12A31.850X0RED 

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*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Fri). Orders over $50
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