REDSHIFT ShockStop Suspension Stem for Bicycles, Shock-Absorbing Bike Handlebar Stem for Road, Gravel, Hybrid, and E-Bikes

After reading some of the negative reviews and comments I wasn't sure what to expect. This is definitely working for me on my new Cannondale Topstone gravel bike. My commute to work is 8 miles (one way) and the bike path and roads are not even. Especially roots pushing up the pavement is common on the bike path. It is rather painful when going 20mph and hitting them unexpectedly (e.g., in the dark). I am also going on an unpaved trail through the woods. The before and after are astonishing to the point that I am still impressed even after riding this for a couple days now. The movement of the handlebar is substantial. I didn't expect that. The quality and craftsmanship of the stem are excellent. The installation was easy (unless you are as stupid as I am and remove the original stem with the magnetic brackets falling down to the bottom of the fork inside the carbon fiber tube - duh). Overall, a much smoother experience now and a lot less impact on my hands and arms. So much more fun! One little side effect that is somewhat annoying is that my rearview mirror is shaking quite a bit due to the dampening effect :). I followed the weight table, and it seems to be just right. I wouldn't want it any softer or harder at the moment. Once the weather gets better, I'll try out a mountain bike trail with it. I am very impressed

Why did you pick this product vs others?: A must have stem for gravel, and commuter cycling. I bought this stem because I wanted my gravel cycling experience to be fun. I built up gravel bike to see what all the craze was all about. I can say that it’s rough when not having suspension or something to soften the fire road, and single track terrain. You feel everything, I have a full rigid aluminum bike with a steel fork. Well I can say that you can feel EVERYTHING. I went out for a shakedown ride at my local bike trail and it was a rough ride. Carbon would dampen some of the blows from the terrain but it would still be rough. No amount of carbon, titanium, air pressure in the tires, gel inserts with the most comfortable bar tape will compete with the experience of a bike that has suspension. I bought the redshift shock stop stem and satori harmony suspension seatpost to give me some type of help with rough dirt roads and trails. It helped a lot. The shockstop comes with directions and a graph to select which combo of elastomers you use. I’m 190lb but I went with the 180lb elastomers because the 190lb elastomers were too stiff and provide very little suspension. The elastomer combo one step down provide really good suspension feel and movement. The shockstop is a single pivot suspension stem so it will take a couple of rides to get used to the motion and the feel of the bars dipping. You get the most suspension when you ride the brake hoods and the least when you’re on the drops. After getting used to the single pivot movement. It becomes natural and now the fire roads and single track trail turbulence are much less. The impacts are greatly reduced and you can ride faster with confidence. I got through a 15 mile trail still feeling fresh. This stem would be a huge compliment to your multi thousand dollar gravel bike, cyclo cross, flat bar gravel, full rigid mountain bike, etc., etc. There are different suspension stems out there, I chose this one for the weight difference compared to the competing suspension stems, ease of installation, technical support, and yes looks. It looks like a standard bike stems. The other suspensions stems that I tried were very heavy, were easy to install, but the visual look was not my cup of tea. I wanted to ride not get looks or anything that would be an attention magnet. The redshift stem design is very minimal and would accomplish what it was built to do.

I own both the 30 and 6 degree stems which I use on my gravel bike. One for more upright pleasure riding and the other for more speed rides. The suspension works very well on choppy gravel roads and helps reduce the jolts and chatter. Not 100 percent better but significantly better. The price is high but it's a good solutions for zero suspension bikes like mine. I also own the ShockStop Suspension Seatpost which is a big game changer.

This is a review of the Redshift ShockStop Stem and Seatpost. I purchased and installed both products, and they were complete game changers for my ride. I bought the 27.2 x 350 mm Seatpost, and the 90 mm 6 degree stem. I installed them on my Trek Domane AL5 2025. The Seatpost was a bit longer than stock, but my fit is a fairly high seat, so there were no issues. It easily met the minimum insertion requirements. The stem was +/- 6 degree, my stock stem was +/- 7 degree so it was reasonably close. I installed it as +6 and it didn't change my ride geometry enough to be an issue. For the seatpost, a quick read of the instructions made it easy to understand how to setup the preload. I set the preload slightly soft for my weight, greased the stem, and installed it on my bike. I was careful to follow torque recommendations for tightening the stem in place. Installing the seat on the seatpost was a little bit of a challenge. the Redshift seatpost is a 2 screw mount, they are accessible, but not easily. It is a balance act to tighten both to set the correct seat angle, but with some loosening of one screw and tightening of the other, it can be accomplished. I would say that installing the seatpost took about 45 minutes to get it just how I wanted. I expect changing the preload to take me about 5 minutes, and there are clear markings in cm to aid me in installing the seat to the exact height that it was previously installed at. For the stem, a quick read of the instructions identified that I was at the very bottom of my weight group for what elastomers to install. The next combination down was a significant change. The instructions stated that I could go onto Redshift's website and view a complete list of combinations. This was slightly challenging. On the page for the stem there is no information about elastomer selection. On the support page I did find links to a video and pdf for elastomer selection. I elected to view the pdf, and printed it. Sure enough there were 2 combinations between the 2 options listed on the instructions. I selected the stiffer of the two (just below the one recommended for my wight). I mounted the stem on my bike, and mounted my handlebars. Again make note of the torque recommendations, Redshift has had them engraved on the stem, so they are hard to miss. This also took about 45 minutes. To change the elastomers, I will have to unmount my handlebars and remove a retaining plate from my stem. I do not look forward to my expected 25 minutes or so just to change elastomers. I took my bike out for a nice long ride, 20 miles, 15 MPH, and asphalt. The only downside to this trail, and the reason I bought the Redshift parts, is that there are several points where tree roots have pushed up the asphalt and created some very jarring speedbumps. Without the Redshift products, these were uncomfortable at best, and sometimes made me feel like I was on the edge of controlling my handle bars. This ride, with both installed, the seat was easy to manage, and did not hit hard. With the stem installed, I could still feel every twig and root, but it was very much dampened. You do not feel disconnected from the road, but you are very much more in control. By the end of the ride, I felt less fatigue in my arms and less soreness from the seat. While researching elastomers, I read that there is a break-in period, I would say that by the end of my 20 mile ride, the stem did offer better bump dampening than it did at the start, but I do feel that the elastomer selection I made from the support pdf was spot on. Pros: They do exactly as they advertise Clear instructions (with the exception of elastomer selection) Relatively simple installation More control Less shock Well manufactured Clean looking Cons: Neither of these items are what I would call cheap 2 bolt connection for the seat is fiddly, but manageable Elastomers, the best list is online only and not as easily found as I would have thought The listing for the stem is clear that it is a 6 degree stem, but it is hard to identify if it will install as +, - or both They only come in black, not an issue for me as I was replacing black parts with black parts, but some might like other colors Summary: If you have the money, and want a smoother ride, these are quality parts to compliment and soften your ride.

Ich hatte vorher schon eine Redshift Shockstop Sattelstütze verbaut (auch SEHR zufrieden damit) und wollte am neuen Gravelracer ein wenig Komfort für die Handgelenke. Was soll ich sagen, ich bin 100% zufrieden mit der Entscheidung. 1. Habe ich im Vergleich zum Serienteil 10 mm kürzer gewählt, jetzt sitze ich besser auf dem Rad und auch das Lenkverhalten ist etwas zackiger. Die Federung beeinträchtigt das Lenkverhalten dabei kein bisschen. 2. Das Wesentliche ist aber, daß der Vorbau den Schotter fast komplett wegbügelt (in Bremshebelposition) ! Wurzeln, Kanten und Schlaglöchern wird der Schrecken genommen, unten "zappelt" das Rad und auf den Hoods herrscht fast Stille. In der Unterlenkerposition ist der Effekt etwas schwächer ausgeprägt, aber immer noch deutlich vorhanden. 3. Wiegetritt ist kein Problem, der Vorbau "geht" nur in die Richtung, die er soll, und auch unter Belastung funktioniert die Federung weiter. Top. Natürlich ersetzt der Vorbau keine gut eingestellte 80mm+ Federgabel, aber WAS er leistet, ist echt enorm. Elastomer-typisch spricht die Federung bei kleinsten Stößen bereits an, und genau das macht die Fahrten mit dem Redshift so entspannend. Das wenige an Zusatzgewicht, was die Stütze und der Vorbau mitbringen (zusammen ca. 500 Gramm verglichen mit regulären Aluteilen) machen sie meiner Meinung nach dadurch um ein Vielfaches wett. Die Montage war in der Beschreibung vorbildlich erklärt, die Auswahl der Elastomere passte auch (ich, 75kg, habe 50/70 eingebaut bei 90mm Vorbau und -6° Einbauposition, die 40/70 Kombi, die ich wegen des kurzen Vorbaus angedacht hatte, war mir zu weich). Die Verarbeitung ist vorbildlich. Abweichend vom Produktbild bekommt man schönere (finde ich) Klemmschrauben. Alles in allem bin ich richtig glücklich mit dem Teil und empfehle es jedem, der auch nur gelegentlich seinen Renner/Cyclocrosser/Randonneur oder Gravelracer über auch nur moderat schlechten Belag steuern möchte. Ein echter Peacemaker für die Handgelenke!

The Shockstop stem has all the benefits of suspension with none of the drawbacks. I was concerned that it would be too heavy, would not absorb enough shock or would negatively impact the ride. The ShockStop is brilliant. On my flatbar road bike it works exactly as advertised. It is a very stiff bike with narrow wheels and I felt every bump. The 10mm of travel completely absorbs most bumps and saves so much pain and numbness in my hands. I’ve changed from cautiously avoiding bumps to actually aiming for them! The stem does add a small amount of weight but I absolutely did not notice it. My concern that it might effect performance or ride negatively was also unfounded. I previously had significant pain in my arms when riding but the ShockStop stem has removed it. It’s made it feel like a completely new bike and I could not be happier.

ロードバイクで使用。初め、ろくに説明書も読まずに装着したところ、全くサスペンションが効かないので、説明書を熟読。 このステムには上下があり、+6°または-6°を選択可能とのことだが、そのままひっくり返すだけではダメで、ステム内の部品をを上下逆にする必要がある。厳密には+6°または-3°。製品の精度かもしれない。 使用感は素晴らしい。軽トラからレクサスに乗り換えたような感覚。 乗り初めはやや違和感があるものの5分で慣れる。 通常のライディングポジションでやや沈み込むので、ハンドルをやや上向きにセッティングした方が良い。 上り坂は通常より疲れる印象。ヒルクライムには向かない。 ロードバイクで使用する場合、もう一段階固くした方が快適度が増すかもしれない。 サスペンションが樹脂なので、使用時期によっても硬さを変えた方が良いかもしれない。 色々と試せるのも魅力。 取り付け器具があり、プラスチック製品なのだが、注意して締めた方が良い。当方は締めすぎて破損してしまった。 あらゆるパーツの中で最も乗り味が変わると思われる名品。 本格的なレースには不向きだが、快適な通勤やポタリングを望む方には是非おすすめしたい。

Ho aspettato molto prima di montare sulla mia bici gravel questo strumento che attenua le scosse sul manubrio che mi aveva consigliato un amico perchè mi sembrava eevato il costo. Devo dire che mi pento solamente di non averlo fatto prima, cambia completamente la comodità, ma anche la sicureza in quei tratti dove ci sono molte scosse a causa delle asperità del terreno. Il costo vale tutto assolutamente consigliato. Prenderò anche quello per il sellino tra non molto.

グラベルバイク用に購入して、林道グラベルライドで使っています。セッティングはマニュアルにある体重ごとの推奨値より一段硬めで使っています。マニュアル通りでも良いと思います。エラストマーとボルトの関係が初見ではわかりにくく、取り付け方が間違いやすいので、最初はマニュアルをちゃんと読んで取り付けることをオススメします。自分は何も見ずに取り付けたら間違ってしまい、ステムが全然動かない状態で1回走ってしまいました。負荷がすべてボルトにかかってしまうので、危険です（自分の他に経験者いるはず）。正しく取り付ければ、ちゃんと動きます。 で、主に国内・海外レースを含むグラベル＋林道で5000kmくらい使っています。結論から言うと、手首・肩への負担が激減します。ロング（50～100km以上）のグラベルを走った人は分かると思いますが、手首への負荷が半端なく、特に200～300km以上グラベルを走る（海外レースなど）特殊な状況では、手首に腱鞘炎に近い症状が出ることもあります（経験あり）。MTBのサスペンションほどのショック吸収性はありませんが、軽微な振動は明らかに軽くなります。海外のグラベルレースに出ればわかりますが、かなりの頻度で使っているのを見かけます。 2年使ってエラストマーのヘタレなどは特に感じません。つい先日新しい軽量版も導入して比べてみましたが、やはりヘタれは感じません。長くハードに使っていると（特に雨天のあと）、時々ギシギシ音がしますが、これはエラストマーとステム内のぼるとが擦れ合っている音です。なので、内部部品を一度すべて取り外して、綺麗にすればOKです。ここでコツは（公式アドバイスにもありますが）取り付け時にグリスなど潤滑祭を「塗らない」ことです。ここ大事です、潤滑剤はNGです。また、軸（ピボット）部分もグリス、ルーブを指してはいけません。ここもドライのまま使い続けるのがメーカー推奨です。これさえ守ればきっちり無音で使い続けることが出来ます。 あまりに好きすぎて、他にツーリングバイク、家族の分も含めて3つも同じステムを使っています。グラベル用途では大変オススメします。なお、ロードではあまりメリットが感じられないので、非導入です。