About The RaceFace Atlas 50mm 0° 31.8mm Black Stem

The RaceFace Atlas is a 50mm, 0° aluminum stem with a 31.8mm bar clamp for 1-1/8" steerers, built for all-mountain, freeride and downhill riding. It is light enough for all-mountain use and tough enough for freeride and DH, at 150g.

It is CNC machined from AL-6061 and uses a 4-bolt bar clamp with an interlocking U-shaped faceplate. Opposing bolts on the steerer clamp hold it securely to the fork.

Who It's For

  • All-mountain, freeride and downhill riders with a 31.8mm handlebar.
  • Riders with a 1-1/8" steerer who want a 50mm stem at 0°.
  • Riders with a 35mm bar should look elsewhere.

What to Look For

  • Clamp: 31.8mm bar clamp; 1-1/8" (28.6mm) steerer.
  • Length and rise: 50mm long, 0°.
  • Stack: 40mm steerer clamp height.

Key Features

CNC-machined AL-6061. 150g.

Bar clamp. 4-bolt with an interlocking U-shaped faceplate.

Steerer clamp. Opposing bolts; 40mm stack height.

Finish. Black.

Rider Intent Summary

  • Biggest strengths: rated from all-mountain through downhill at 150g.
  • Tradeoffs: 31.8mm clamp only; 0° only.
  • What makes it different: a 31.8mm option for riders not on 35mm bars.

Victory's Take

If you're keeping a 31.8mm bar on a trail or gravity bike, we at Victory Bicycle Studio like the 50mm Atlas as a sturdy, neutral starting point for cockpit setup.

Specifications

  • Brand: RaceFace
  • Model: Atlas
  • Length: 50mm
  • Rise/Angle: 0°
  • Bar clamp: 31.8mm
  • Steerer: 1-1/8" (28.6mm)
  • Stack height: 40mm
  • Material: CNC-machined AL-6061
  • Color: Black
  • Weight: 150g
  • Part number: ST12A31.850X0BLK

What you get

  • Clamp - 31.8mm
  • Length - 50mm
  • Rise - 0°
  • Steerer - 1-1/8" (28.6mm)
RaceFace Atlas Stem - 50mm 31.8 Clamp +/-0 1 1/8" Aluminum Black

Race Face

RaceFace Atlas 50mm 0° 31.8mm Black Stem

Regular price $109.99 USD
Sale price $109.99 USD Regular price $109.99 USD

Frequently Asked Questions

Do you offer free shipping?

We do offer free shipping on non-bike orders over $100. We do not offer free shipping for bicycles unless it is a one time promotion. Generally, bike shipping will cost $150 and that covers just the shipping of the bike with no assembly. If you were to bring that bike to your local mechanic or bike store, you would pay them their assembly fee. If you choose our Professional Assembly option for $200, our service technicians would assemble the bike before shipping and then re-pack the bike safely for transit. When you receive the bike you would attach the front wheel, attach the seatpost/saddle, and raise the handlebars and clamp them. Those three items do have to be detached to minimize or eliminate the chance of damage in transit.

How much does shipping cost?

For orders of parts, accessories, apparel, etc. on orders under $100, shipping is a flat rate of $9.99. Regular bike shipping without assembly is $150, bike shipping with Professional Assembly is an additional $200 (so $350 in total which includes the $150 of regular shipping). Our White Glove Delivery option is $699 and that will cover the assembly of the bike and our White Glove Delivery partner delivering your dream bike to your front door, ready to ride!

How can I track my order?

When you place your online order, you will receive an instantaneous email update with your order number and order details, and shortly after, you will receive a follow up order email with the tracking number for your order.  If you still need assistance with your order, feel free to email us at online@victorybicyclestudio.com and we will respond asap.