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sanada
Reviewed in Japan on September 16, 2023
私の新車にぴったりです。大満足です。
Michel M
Reviewed in the United States on October 30, 2023
For the price I expected perfection.. which is not the case. Tiny Allen bolts are of poor quality and too small. Design is a bit too "bulky". And actually quite heavy. Despite using correct sized handlebars and regardless of how tight I tightened the handlebar clamp, the handlebar still rotates in riding conditions. Absolutely totally useless stem . I realize it's made in USA etc, but there is just too much hype around this product.
Eddie Johnson
Reviewed in the United States on March 18, 2022
Thomson bike product! Says it’s all. As expected this is a great stem! This purchase and my Thomson seat post brings my bike closer to what I envisioned my dream bike would be! Great pickup!
キム
Reviewed in Japan on November 18, 2022
正に芸術品ですね。👍
アマゾン
Reviewed in Japan on September 10, 2021
素晴らしいの一言
breezy
Reviewed in the United States on October 26, 2019
The Thomson reputation is well known and in this case it continues. The stem is perfect for my mountain bike. Not sure what to say, it is well-made, nicely finished and strong. It should last longer than my new bike.
あり
Reviewed in Japan on April 27, 2019
写真はオーバーサイズなのにワンポイントファイブ。45mm(o.p.f)って分かりにくい表記ステム長()の表記じゃ気付きにくいし、素人に優しくない。写真は50mmのものですとしか商品説明にないのに写真をオーバーサイズ使う性格の悪さ。不良在庫をていのいいように捌こうとしてる悪質さが見える
Roland D.
Reviewed in Germany on May 31, 2014
nobel-vorbau zu fairem preis. steif, edel und schön.sieht an meinem bike (nicolai helius cc) richtig gut aus.nur zu empfehlen.
T1M5T4
Reviewed in the United States on May 19, 2014
Was looking for a shorter stem for my Cannondale Jekyll with 1.5 inch steerer tube. This is hard to find as most bikes are 1.25 inch. This fit perfectly and really changed the feel of my bike. I feel more stable on decents and steering is more responsive than with the stock stem. A shorter stem is a great way, relatively inexpensive way to change the ride characteristics of your bike. It also looks a lot better now too.Beware you may need to buy additional spacers to make this stem fit on your bike. Locating spacers was difficult but I found some Straightline spacers on CRC that fit perfectly.
crewdoglm
Reviewed in the United States on October 14, 2014
I am using the X4 on a road bike although it's marketed as a mountain bike item. As such, there is about a 50 gram weight penalty over say a Ritchey or a 3T road stem. Thomson's X2, the road-specific stem, competes in weight but I can't recommend it due to flex and the clamp having only two bolts. Headscratcher there...the X2 is Thomson's only mediocre product. The X4 benefit however is vastly superior stiffness - noticeable immediately and, the large clamp in my logic will be inherently kinder to finicky carbon handlebars. A stem review by Fairwheel Bikes a few years ago actually measured "compliance" i.e., flex under a twist load as in riding. Out of a bunch of carbon and alloy stems, the Thomson X4 took second overall being bested only slightly the Shimano Pro Vibe sprint version seen on Cavendish's rig and Theo Bos's Keirin bikes. The Thomsons are the best made stems and seat posts available in my opinion. The machining is exquisite and the overall quality is without equal. I can also validate Thomson's claim as to their seat post clamp being superior. That thing is the best way to NOT crack your $160 carbon post as it holds securely at 2.8 Nm. (BTW, get yourself a REAL torque wrench - not the "clicker." I learned that after cracking two of them...ouch.)
Mike P.
Reviewed in the United States on April 18, 2014
While most of these Thomson X4 stems are used on MTB applications, they also work EXCELLENTLY on track sprint (velodrome) bikes. I have and X4 110mm on my Felt TK2. Super rigid - which is exactly what you want and need for the big gear standing starts. And, the top notch fit and finish are just the icing on the cake. As other reviewers have mentioned, this is the gold standard of stems and worth 5+ stars.
fuel98rider
Reviewed in the United States on January 26, 2013
Strong and reliable are the words to use when thinking about this stem. I have Thomson stems on all of my bikes, because they look good, are superbly made and are stronger than anything you can throw at it. I have never had an issue with the Thomson stems I own, they are truly set it and forget it bike parts. Just make sure you use a torque wrench when installing. 5NM is not a lot of torque, but some people might crank the bolts down and they do break pretty easily when over torqued.
Joaquin
Reviewed in the United States on April 4, 2013
The Thomson X4 stem is awesome. Its one of the most chiseled and purposefully built components in my opinion. It is one of my first 21st century bike products. I got it for my DF3 and it fits the whole look of the bike nicely. Its nice and beefy and cleanly machined unlike most of the other stems that look all soft and doe like. All the bolts screw in smoothly and it holds my 3T Scatto bars tight with no carbon sandy grease during my standing start efforts. I got it for my new Dolan DF3 frame so I had to try different stem angles and lengths until I got the right fit. I went through 3 stems before finding the right size and they were all Thomson X4s because I was so impressed by their build quality and clean edged look and I'm an industrial designer with impeccable taste.
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