

🚵♂️ Ride Hard, Stay Secure – The Stem That Keeps Up With You
The Race Face Atlas Mountain Bike Stem is a high-performance cycling component made from durable 6061-T6 aluminum. Featuring a four-bolt clamp and innovative U-shaped faceplate design, it offers superior handlebar security and stress resistance. Lightweight yet tough, it’s engineered for aggressive all-mountain and downhill riders seeking versatility and reliability on every trail.
| Material | 6061 Aluminum |
| Brand | RaceFace |
| Item dimensions L x W x H | 6 x 2.5 x 2.5 inches |
| Color | Black |
| Item Weight | 155 Grams |
| Tensile Strength | 350 Megapascals |
| UPC | 821973186863 |
| Global Trade Identification Number | 00821973186863 |
| Manufacturer | RaceFace |
| Item Package Dimensions L x W x H | 5.75 x 2.44 x 2.32 inches |
| Package Weight | 0.22 Kilograms |
| Item Dimensions LxWxH | 6 x 2.5 x 2.5 inches |
| Brand Name | RaceFace |
| Warranty Description | Limited Manufacturer |
| Model Name | RaceFace 91-4511K |
| Suggested Users | Adults, Unisex |
| Number of Items | 1 |
| Part Number | 91-4511K |
| Model Year | 2013 |
| Included Components | Race Face Atlas Mountain Bike Stem (Black, 31.8-mm Clamp, 65-mm, 1-1/8-Inch) |
| Size | 31.8-mm Clamp,65-mm, 1-1/8-Inch |
| Sport Type | Cycling |
J**S
Great upgrade for your bike.
Was a great upgrade for my bike. Had a 100mm stem so much better now.
D**D
Perfect
This thing is beautiful!. I needed a longer stem on my new bike, because that's what I'm used to. It replaced an Industry 9 stem. At 15mm longer the weight gain was minimal.My only beef is that the Race Face instructions say "torque the screws to the specified values", but those values are nowhere to be found. Not even one their website.
P**
Product Is as described .
A little pricey. Money well spent on a good product. Like race face components.
D**M
Razor sharp steering, great handlebar control.
Installation only takes a few minutes if you have the right tools. I recommend using a torque wrench to insure proper installation and therefore meet the manufacturers specs and performance.My factory stem (65mm) felt too far out so I decided to get this 50mm stem instead. Additionally I was looking for a stronger and more durable piece that can handle well.I am super satisfied with this quality stem! Thank you RaceFace for designing it and thank you Amazon for selling it Prime. 😀A few pointers during installation:- This stem has torque specs showing for all screws which is super nice and professional.- When installing new piece, tighten the steer tube cap screw first, and then stem steer tube mounting screws last. This method should help to avoid a potential gap between fork and stem and/or spacers.- I used a torque wrench to tighten all screws. I prefer to hear 3 consecutive torque wrench clicks and making sure its tights across all screws equally.- I used 4 NM to tighten steer tube cap. Most steer tube caps do not have torque spec but I find 4NM to work perfectly on my bike.MTB adventures \m/ \m/
A**S
Killer stem for your mountain bike
This is an extremely sturdy and nifty looking stem for your mountain bike. In addition to it's high functionality it has a lot of mojo. And the squiggly line graphics on it appear nicer in person than in the photos. It can be installed quickly and is an easy upgrade for your mountain bike. I went from a 90mm stem that came with my bike (a Bianchi) to this here 50mm jobber, which moved the bars about 1.5 inches closer to me and now I'm much more comfortable. But don't go by me, find what is comfortable for yourself. There are some good videos on UTube that can give you some guidance for choosing a new stem. The videos were helpful to me but you don't have to believe everything they say. Apparently there are some theories about how stem length can affect how your bike handles depending on the kind of riding you do. Seems to me the Atlas level of Raceface components are at a higher level than some of the others, but you're paying for it. I also bought the monster gigantic Atlas flat pedals but that is a different review.
E**N
Love It!
Im so happy with this stem! Not only is it great quality and durable, but it matches my saddle perfectly. I have the terry topo that has a topographical map so the atlas stem was a no brainer.
R**L
Raceface makes solid products. Great stem upgrade that will be on all of my bikes.
High quality stem, very impressed with the design, finish and machine work- Quality control was on point! I bought a budget mountain bike this past year and am adding a few upgrades as I go along. I cannot say enough good things about the stem or the company. After seeing the type of products they make I would absolutely buy again and love to tour the factory.
D**N
Atlas Stem
Needed a shorter stem with lower rise in my fattie. This stem in awesome and looks great. Easy to install.
D**E
Impresionate y de excelente calidad
La calidad de este poste de manubrio es de lo mejor que se puede encontrar en el mercado. El color esta espectacular. La medida en la longitud es justamente lo que venia necesitando y el control de mi manubrio es ahora mucho mejor.La recomeindo ampliamente solo asegurate de usar una llave de torque para su instalacion.Este poste es de 0 grados y no de 8 grados como dice la descripcion. Raceface fabrica este poste unicamente en 0 grados.
J**S
LIGERO Y GUAPO
Mi bicicleta de montaña pedía a gritos una potencia corta. Me decidí a probar esta. La longitud de 50mm me parece perfecta y a 0 grados no implica tener que inclinar mucho el cuerpo hacia adelante. La he probado estos días y estoy gratamente complacido. La potencia es cómoda y ágil. el diseño "Atlas" con las curvas de nivel (topografía) a lo largo del poste le dan un look bastante racing y moderno. El poste está muy bien construido y la verdad luce muy bien ya puesto.Si es un poco costoso pero vale mucho la pena.+PROS+PESO LIGERO 149g+CÓMODO, NO CANSA+AGIL+MUY BUEN DISEÑO-A MEJORAR-PRECIO-QUE TRAIGA UNA TAPAEn pocas palabras, no hay mucho que pedir, el producto cumple y muy bien con las características que ya mencioné. Te lo recomiendo muchoGracias por leer mi reseña!
K**E
Faded red
Heavy. The actual color is faded red, it's almost as if its pink. it looks like it has been in the sunlight for too long if you get what I mean as Race Face red is not the "deep full" red that proper anodizing provides. On top of this Race Face customer support is absolutely abhorrent and most of their products are Made in Taiwan.
S**E
31.8 / 0 / 50mm MTB RACEFACE ATLAS Stem
Excellent all rounder Stem from RACEFACE (black / 31.8 / 50x0) Great cockpit upgrade promoting a solid riding dynamic.
R**E
Envío incorrecto.
Compré El modelo: 31.8-mm Clamp, 8-Degreex65-mm, 1-1/8-Inch y me mandaron 0-grados!!!No se fijan lo que envían!Como producto muy bueno. La marca es buena.
Trustpilot
3 weeks ago
1 month ago