Easton EA90 Stem
EastonEA90 Stem

Increased strength, reduced weight.

The Easton EA90 Stem sheds grams for race-minded riders, without sacrificing structural integrity or performance. Its EA90 aluminum tubing is the result of a 3D forging process, yielding Easton's lightest aluminum stem to date.

Looking closely at the stem's faceplate, you'll immediately notice the EA90's Distributed Stress Technology or DST, as referred to by Easton. This technology widens the junction between the faceplate and handlebars where the four bolts clamp down, distributing stress over a wider area for extra peace of mind when you're using lightweight aluminum or carbon fiber handlebars.

Note that this stem comes in two rises, 0 degrees (sometimes referred to as 90 degrees) and +/- 10 degrees (sometimes referred to as 80/100 degrees). The steerer tube's height is 40mm, and two opposing bolts secure it firmly in place to minimize stress. The EA90 comes with a 31.8mm handlebar clamp and 1 1/8th-inch steerer clamp only.

  • EA90 aluminum tubing
  • Distributed Stress Technology
  • Steel bolts (4mm Allen)
  • 0 and +/- 10 -degree rises available
  • Reviews
  • Q & A

Easton Aluminum Quality

    Easton is one of the finest maker of aluminum things and this stem is a stunning example of that heritage. It's understated, lightweight and tough to take whatever a road or trail could throw at it. 4 bolt makes for hassle free removal and keeps the torque tension on the bars low. Great stem for a great price.

    Best stem for the price

    • Familiarity: I've put it through the wringer

    This was the second one of these stems I've bought (sadly I payed almost $60 for the first one from another retailer). I have one on my road bike and just picked up a 70mm one for a mountain bike I just built up. You will be hard pressed to find a lighter aluminum stem out there, and will pay double or triple the price in getting a carbon one at almost the same weight.

    As others have mentioned, the instructions are great, and the liplock combined with the teflon taped screws makes me confident that it will hold up under tough conditions.

    My only complaint is that I don't find the Easton logos to be that attractive, especially compared to some of the other parts on my Bianchi road bike. But they make up for it with stellar designs.

    Gets the job done!

    • Familiarity: I've used it once or twice and have initial impressions

    Needed a little bit longer stem for my fat bike. This fit the bill, black, aluminum, reasonably priced, my only gripe is that the lettering on the sides reads upside down if you want to flip the stem so it goes up. As a bonus this Easton Stem had the best set of instructions I have ever opened for a stem. The one I received was not like pictured above.

    Solid quality.

    • Familiarity: I've put it through the wringer

    Hard to find 90 degree or 0 stems these days. Older version but still top notch. Dummie free torque. Looks great on bike

    Solid stem on a killer price!

    • Familiarity: I've used it several times

    Not the lightest in the bunch but will be lighter than most stock stems. Tons of choices with length and rise to get your fit dialed. Reach out to us if you have questions on what size is right for you!

    Hello would you be able to help me with a stem size?

    Hi 8492,

    I would be happy to help with that! Shoot me an email at kharker@backcountry.com

    Stemtastic!

    • Familiarity: I've used it once or twice and have initial impressions

    Needed to run a shorter stem, and drop the bars just a little. Perfect for tool for the job. lighter than my stock stem, great bang for you buck buy.

    great stem !!!!!

    • Familiarity: I've put it through the wringer

    I love this stem!!! very light. very stiff. looks great. confidence inspiring stem !!!

    Strong and light.

    • Familiarity: I've put it through the wringer

    I previously had the 100mm version then went down to 80mm and finally ended up with a 70mm. Due to the shorter length it is significantly lighter and stiffer than the previous sizes I've used. I have the current 70mm on my 2013 Orbea Occam 29 carbon with Raceface SIXC 785mm low rise bars. It makes the bike handle very well. Easton has had a mixed record for the last few years but when it comes to their stems and bars I can only say good things about them. I don't like their hubs but they know how to make strong and light carbon fiber rims and bars along with strong stems. I can't feel a difference between these and my old Thomson Elite X4 stem only that it's much lighter.

    Strong and light.

    EA90 Black Zero (90) Degree

    Easton EA90 on my CX bike.

    EA90 Black Zero (90) Degree

    Upgraded my cross/commuter

      Needed a longer stem for my cross cycle that I am using for a commuter through the Fall and Winter months. Getting those extra miles on my legs, saving gas, and loving life. Found the Easton EA90 Stem at a great price here at Huck Easy installation and great looks too. Easton even has the torque settings engraved into the stem. Super customer service at Easton too. They replaced the handle bar bolts for free even after I told them that it was my fault because I over-torqued the original bolts. I did not read the torque numbers and went with the numbers off of my old stem. Lesson learned great customer service at Easton and always read the fine print before assembly.

      stem

        It creaked noisily, I sent it back.

        Weight not as described but GREAT stem!

          Great stem. 137g actual weight on 110mm black stem.

          EA90 Stem

          EA90 Stem

          white stem

          white stem

          what does the first number mean in the...

          what does the first number mean in the options? In other words, 0- vs. 10-?

          That the angle of the stem. So the options are 0 degree (flat) or 10/-10 degree rise/drop. The step is either +/- because it can be mounted either direction.

          Sweet stem

            I have one of these bad boy's in white. Light weight, stiff, won't mess up your carbon bars, and matches my frame ta-boot!

            Go Easton Young Man

              I just installed my EA90 stem on my bike. The original stem is perfectly good, but was 110 mm. The way to measure if your saddle is installed correctly is to put your elbow against the very front of the nose of your saddle, extend your middle finger which should be in the middle and over your handle bars. When I measured, I surely needed a shorter stem, since my finger was short by inches with the seat moved as forward as possible. I installed the new shorter stem, and my Pinorello FP=3 DuraAce was even more comfortable to ride - I do about 50 miles every other day. Another way to tell if your stem is the right size is to to look down and see if the axle of your front wheel looks as though it is under the handle bars. If it looks like its forward of the bars, you need a shorter stem....to the rear of the handle bars you need a longer one. The EA90 is aluminum, but I see no advantage to their carbon copy of this stem...they both weigh the same. The Pinorello stem was a bit more flashy looking, however this Easton is finished very nicely and works well. I will attach my bike computer to it, so it will hardly be visable at all. The bike is a bit twitchy with the shorter stem, however, I will get used to that soon enough.

              Better than carbon version...

                I bought this stem along with the carbon version (EC90) to perform a side-by-side, Pepsi challenge styled comparison (remember those?). I liked this one better. Dimensionally and weight-wise they were identical. "They" say that 4-bolt patterns are better (I am not convinced one way or the other) and this one is 4-bolt. I think the two things that made me choose aluminum was price and style - the white stem looks much better than the black carbon with the upside down logo (when mounted 10 degrees up).