We all want stems that are strong and light. We want them to be durable, and we want them to minimize stress on the handlebar and fork clamped on either end of the stem. Easton addresses all points in their EA90 stem.
The most unique feature of the EA90 is the DST technology faceplate. Distributed Stress Technology is simple, but works wonders. It appears to be just a flourish; notice how the "E" icon spreads past the four bolts on both sides. This increases the contact area between the face plate and the handlebars. Essentially, the clamp itself creates edge stress, and tightening the bolts creates clamp stress. The way the faceplate is wider than the bolts means those stresses are distributed over a wider area and those aren't as concentrated on the handlebar.
The stem also has what Easton called Top Lock technology. This means that you should tighten the top of the clamp first so the faceplate is directly contacting the stem. This creates a stronger force against the bars and increases the stem bolts fatigue life.
This aluminum stem comes in two different rises 0-degrees (sometimes called a 90-degrees) because it is perpendicular to the steerer tube; the second is +/- 10-degrees (sometimes known as 80/100-degrees). The height of the steerer tube clamp is 40mm; it is secured by two opposing bolts to minimize stresses on the steerer tube. The stem is available in 31.8mm handlebar clamp and 1 1/8th inch steerer clamp only. Lengths available are 90-130mm in 10mm increments. All bolts are made of steel and accept 4mm Allen keys and a max torque of 8Nm. The stem can be used with any handlebar and fork combination that has the matching diameters. There is a limited five-year warranty on the stem. The stem is available in Black. The claimed weight of the Easton EA90 stem is 130g (in the 120mm size).
Steer Tube Diameter:
70 mm, 80 mm, 90 mm, 100 mm, 110 mm, 120 mm, 130 mm
Black, 80mm/80degree: 127g
road cycling, XC, cyclocross
Terms And Conditions
This Usage Agreement (the "Agreement") governs your conduct while using various services on the web site Competitive Cyclist and its affiliate web sites (collectively, the "Site"). All references to "we," "us," and "our" shall mean Competitive Cyclist and all references to "you" and "your" shall mean the user of the Site and Site Services. This Agreement applies to various services and activities on the Site as well as to gear review and product ratings (collectively, "Site Services"). Please read this Agreement carefully.
BY ACCESSING, BROWSING, AND USING THE SITE, ANY SITE SERVICES AND OTHER SERVICES THEREIN, YOU AGREE TO BE BOUND BY THIS AGREEMENT AND ITS TERMS. IF YOU DO NOT AGREE TO THIS AGREEMENT OR ANY SUBSEQUENT MODIFICATION THEREOF, DO NOT ACCESS, BROWSE OR OTHERWISE USE THE SITE OR SITE SERVICES, INCLUDING THE SUBMISSION OF ANY REVIEWS OR COMMENTS.
Any comments, reviews (including gear reviews and product ratings), posts, feedback, questions, answers, notes, messages, images, video, audio, materials, documents, data, graphics, ideas, suggestions or other communications (collectively, "User Content") you submit on the Site are not private or proprietary. By submitting User Content on or through the Site, you grant, assign and transfer to Competitive Cyclist all of your rights, title and interest, including without limitation, all intellectual property rights and moral rights, in and to such User Content. To the extent the preceding assignment and transfer is ineffective, you hereby grant Competitive Cyclist an irrevocable, royalty-free, worldwide, perpetual right and license to use, copy, modify, adapt, display, publish, archive, store, distribute, reproduce and create derivative works based upon such User Content, in any form, media, software or technology of any kind now existing or developed in the future.
By submitting such User Content on or through the Site, you are confirming that (a) you are the sole author of the User Content and the User Content originated with you and not copied in whole or in part from any other work; (b) you have obtained all necessary permissions associated with the User Content, including without limitation permissions relating to copyrights, trademarks, rights of publicity and/or rights of privacy; (c) the User Content does not contain hate speech or profanity and is not unlawful, threatening, abusive, harassing, tortuous, defamatory, vulgar, libelous, obscene, racially, ethnically or otherwise objectionable, an invasion of another's privacy, or otherwise in violation of this Agreement; (d) that you are not a minor and have the legal right and capacity to enter into and comply with this Agreement; (e) such User Content does not and will not, in any way, violate or breach any of the terms of this Agreement; and (f) Competitive Cyclist shall not in any circumstances be required to pay or incur any sums to any person or entity as a result of its use or exploitation of the User Content.
With respect to your conduct on the Site or while using the Site Services, you agree not to: (a) attempt to disguise the origin of any User Content transmitted to the Site Services whether through the Site or any third party site; (b) act in any manner that negatively affects other users' ability to use the Site and Site Services; (c) impersonate any person or entity, including without limitation, a manufacturer or owner of any product, or falsely state or otherwise misrepresent your affiliation with a person or entity; (d) interfere with the Site or Site Services, or servers or networks connected to the Site or Site Services, or disobey any requirements, procedures, policies, or regulations of networks connected to the Site or Site Services; (e) upload, post, or otherwise transmit any User Content that with respect to the Site Services: (i) is not relevant to the product, service, person or entity being reviewed; (ii) you do not have a right to transmit under any law or under contractual or fiduciary relationships (by way of example but not limitation, inside information, proprietary and confidential information learned or disclosed as part of employment relationships or under nondisclosure agreements); (iii) contains software viruses or any other computer code, files or programs designed to interrupt, destroy or limit the functionality of any computer software or hardware or telecommunications equipment; or (iv) is unsolicited or unauthorized advertising, promotional materials, "junk mail," "spam," "chain letters," "pyramid schemes," or any other form of solicitation.
User Content does not reflect the views of Competitive Cyclist, and Competitive Cyclist does not represent or guarantee the truthfulness, accuracy, completeness, timeliness, integrity, quality or reliability of any User Content, nor does Competitive Cyclist endorse or support any opinions expressed in any User Content. In no event shall Competitive Cyclist have or be construed to have any responsibility or liability for or in connection with any User Content, Any gear reviews and/or product ratings submitted on the Site, if displayed, are displayed for entertainment and informational purposes only. Under no circumstances will Competitive Cyclist be liable in any way for any User Content, including but not limited to, any errors or omissions in any User Content, or for any loss or damage of any kind incurred as a result of the use of any User Content posted, emailed or otherwise transmitted via the Site or Site Services.
If Competitive Cyclist determines, in our sole and absolute discretion, that you or any User Content you submit violates this Agreement, we reserve the right, at any time, without notice and without limiting any and all other rights Competitive Cyclist may have under this Agreement, to: (a) refuse to allow you to submit further User Content; (b) remove and delete your User Content; (c) revoke your registration and right to use the User Content Submission Features; and (d) use any technological, legal, operational or other means available to enforce the terms of this Agreement, including, without limitation, blocking specific IP addresses or deactivating your registration, access to the Site and Site Services using your e-mail address, and your user name and password. Without limiting the foregoing, once User Content is submitted to the Site, Competitive Cyclist may take any or no action with respect to such User Content, including without limitation, deleting, editing, modifying, rejecting, or refusing to post such User Content, but is under no obligation to offer you the opportunity to edit, delete or otherwise modify User Content once it has been submitted. Competitive Cyclist shall have no duty to attribute authorship of User Content to you and shall not be obligated to enforce any form of attribution by third parties.
If, despite the foregoing assignment and transfer of rights in the User Content, it is determined that you retain moral rights (including the rights of attribution or integrity) in the User Content, you hereby declare that: (a) you do not require that any personally identifying information be used in connection with the User Content or any derivative works of or upgrades or updates thereto; (b) you have no objection to the publication, use, modification, deletion and exploitation of the User Content by Competitive Cyclist or its licensees, successors or assigns; (c) you forever waive and agree not to claim or assert any entitlement to any and all moral rights of an author in any of the User Content; and (d) you forever release Competitive Cyclist, and its licensees, successors and assigns from any claims that you could otherwise assert against Competitive Cyclist by virtue of any such moral rights.
You are prohibited from violating the security of any system or network compromising the Site or the Site Services, including but not limited to the following: (a) unauthorized access to or use of data, systems, or networks, including any attempt to probe, scan or test the vulnerability of the Site or Site Services or to breach security or authentication measures; (b) unauthorized monitoring of data or traffic on the Site or of the Site Services; (c) interference with the Site or Site Services including without limitation, any type of flooding technique or deliberate attempt to overload the system such as denial or service attacks; (d) forging of a message header or any part of a message header; or (e) using manual or electronic means to avoid any use or access limitation placed on this Site or the Site Services. Such violations may result in criminal or civil liability.
Competitive Cyclist reserves the right to report any activity or persons that Competitive Cyclist suspects has violated any law or regulation to appropriate law enforcement officials, regulators, or other appropriate third parties (including the disclosure of appropriate subscriber information). Competitive Cyclist may also cooperate with appropriate law enforcement agencies to assist in the investigation and prosecution of any illegal conduct. Indirect or attempted violations of this Agreement and actual or attempted violations thereof by a third party on behalf of any user shall be considered violations of this Agreement by such user.
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.
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.
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).