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MTB stem 31.8 stem Mountain Bike Stem Mountain Bike Handlebar Stem for Most Bike Road Bike MTB BMX

Free shipping on orders over $29.99

$25.99

$ 12 .99 $12.99

In Stock
  • SIZE & COMPATIBILITY: Universal fit and easy to install, EVOSID MTB STEM,Handlebar diameter: Length(40MM), Height(40MM), Front fork diameter(28.6MM), Handlebar Diameter(31.6MM), Screw(M5), Weight: 139g
  • Suitable: For downhill and off-road.BIkeshort stem is more conducive to the control of the bike, so that the bike steering is more flexible, and the short stem with the long handlebar,will safer and more stable at high speed.
  • DESIGN: Aviation grade high strength aluminum alloy, appearance electroplating oxidation treatment, anti-rust, anti-oxidation, bright color and long-term non-fading.Ultra-lightweight hollow design, strong shape, Beautiful detail, slarge area CNC hollowed out in the center reduces weight without losing strength.
  • DIVERSITY: 5 different colors to choose: Black, Black Blue, Red,Titanium color. You could choos the most suitable one for your bike.
  • Service and after-sales: Our company is committed to designing and developing more bike accessory. We provide 90 days warranty . If you are not satisfied with our product or you have any questions, please feel free to contact us. We will provide you with satisfactory solutions



Product Description

mtb stem
40mm Stem

High strength aluminium alloy

0°Aluminum alloy hollow short stem

High quality 6061 aluminum alloy, steering sensitive, strong sense of control, suitable for difficult actions, CNC cutting, surface anodizing treatment, lightweight, high strength

XC AM

The use of Germany imported 6061 T6 processing aviation grade aluminum alloy, strong and extraordinary, suitable for XC,AM and other professional competitive scenes, the use of Japanese imported CNC machine tools and German imported tools, plus carved to ensure that EVOSID stem ultra-high precision, two-color gradient anode process, low-key not mediocre, but also highlights the driver's unique temperament

Bike Stem
Bike Stem

CNC process technology

Fine workmanship, outstanding quality, beautiful, a perfect work of art

Bike Stem

M5 Stainless steel screw

Aviation aluminum, durable

Bike Stem

Perfect control

Suitable for most handlebars and front forks, so you are not afraid to install

Brand EVOSID
Material 6061 T6 aluminum alloy
Weight about 138g
Style XC/AM
Colour Black,Red,Black blue,Titanium color
Length 40mm
High 40mm
Handlebar 31.8mm
Fork 28.6mm
Technology CNC

Chizzler
Reviewed in the United States on March 7, 2025
I've been mountain biking since1991 . But in these modern times many components are way overprised. I myself have been a bike snob paying over one hundred dollars for a bicycle stem.I decided with my new Lynskey titanium LiveWire build that I'd purchase a few budget components such as a stem.I ordered this stem in the Titanium color , it looks much better in person as this stem is sweet. It's 100% machined and not a cheap cast . It's quality , it's light and if it were a major brand , this stem woukd be well over $100.Don't be afraid of this product!!
Victoria
Reviewed in the United States on July 8, 2024
Excellent product, highly recommend!
Wylie Creek Design
Reviewed in the United States on June 20, 2024
This stem is one of the best values available. It is CNC machined from aluminum billet and it includes decent enough hardware for the price. The finish on mine is flawless.Don't skimp to save a few more dollars. Below this price point, you are likely to get what you pay for. I returned a Wake version that cost half as much because the screws were cheap (ignoring the fact that the new packaging was missing one), and the cast construction created doubts.Stems and bars are obviously two items you do not want failing on you unexpectedly and worth paying a little more for!
nathan scott
Reviewed in the United States on March 22, 2024
This part is as nice as one 4 times the price, wish they made more parts for low price
Barncat
Reviewed in the United States on February 21, 2024
Long time mechanic here... Looks cool, good tolerances, not expensive, works great. Wish they offered it with 20mm more extension.
SERGIO EMILIO ARJONA ROMERO
Reviewed in Mexico on November 3, 2024
De una construcción muy robusta y estilizada, es una compra que vale la pena cada centavo!
Mark Clements
Reviewed in the United States on November 28, 2024
Everything works perfect with this stem for over 3 months now on an e-mountain bike.
zonz540
Reviewed in the United States on October 7, 2024
This stem is nicely anodized and the machining looks great, except for the edges around the handlebar and top tube interfaces. I wouldn’t want to install with carbon components without filing down the edges first.For what you pay, it’s a good deal. It is great for cheaper bikes with alloy components, but it isn’t an alternative for use with carbon, though.
ALMARQUEZ
Reviewed in Mexico on January 17, 2024
BUENA CALIDADBUEN PRECIOMUY LIVIANOY ME GUSTO EL DISEÑO
Ductape
Reviewed in the United States on August 20, 2023
Bought this stem for my Ebike because I didn't like the long reach on the original stem. Using this shorter stem brought the handlebar back closer to me. It looks great on the bike as an added bonus. Tightened it up to spec and nothing slips or creaks. I'm not a hard core downhiller, so I'm not sure I can comment on it's durability, but I'm 100% happy with it.
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