REDSHIFT ShockStop Suspension Seatpost

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.

This post is awesome! I've tried more than a few others and this one is the best. Makes me more curious about their higher end model 🤔 but for now this one does the trick and it does it well. The fact that it doesn't change the distance between saddle and BB much if any is the most noticeable benefit to this design. This make it less of a distraction as it works. It just does its thing and my back appreciates it. Does it rob a miniscule amout of power transfer during a sprint, maybe. But my assumption is that if you're looking at this post you aren't that worried about such things. Check out Redshifts website measurements and recommendations and get the shortest post your frame can accept to save a bit of weight. I was able to go with the shortest of the offerings. Once again, Redshift gets the win!

I've been a mountain biker since I was a child and most of my life I never would have found a product like this necessary. To be honest I doubt most people would want or need something like this. It wasn't until I injured my lower back and now have a couple compressed discs to deal with that putting one of these on my rigid commuter/bikepacking bike started to make a lot of sense. I shopped around and looked at the thudbuster, but there was limited adjustability with their rubber inserts and I've read they wear out over time. Redshift says this post has infinite adjustability, and while I wouldn't necessarily call it 'infinite' I would say it has an adequate bandwidth of adjustability to fine tune a comfortable ride. It really helps take the edge off small bumps once you dial in the preload. Obviously this is not going to be good for rough trail riding- for that you're going to need to either have a suspension fork/frame or just stand up off the seat the old fashioned way to cut through the rough. But for dirt roads, or potholes or uneven transitions on my commute, it works fantastic to keep my back from flaring up which keeps me in the saddle more. Also if you're wondering about bob/sag on the post, its present, but very small. I noticed when I first got the post but these days (3ish months after purchase) it doesn't bother me or feel like its draining watts from my ride whatsoever. 10/10 would reccomend if you're in a sutuation like me 0/10 would reccomend if you're trying to make your squishy bike more squishy.

After more than fifty years and over 250,000 miles on a bike, this is one of the top three transformative bicycle components I've ever tried. I installed it on my "adventure" e-bike, which has a bone-rattling all aluminum frame and weighs in at over 50lbs. Combine that with a slender individual who lacks natural padding, down there, and you get a situation that sounds like a Yahtzee game every time I hit a bump! I've experimented with several suspension posts over the years, but they all fell short for various reasons. Some were too stiff, providing no discernible benefit. Others were so soft that a significant portion of your pedaling effort was wasted flexing the seatpost spring rather than propelling you forward. And all didn't offer the required range of adjustment or granularity needed to properly fine-tune the suspension to my needs. But Redshift got it just right! You can adjust and fine tune the suspension to your particular performance and stiffness preferences over a large range. What I appreciate most is its smooth and precise action without feeling overly spongy or sloppy. It has never "bottoms out" or rebounds inappropriately after absorbing a large bump for me. There's no noticeable yo-yo effect when you're putting out maximum pedaling effort, and it effectively dampens post-bump rebounding. It's akin to driving a classic Citroen DS with Hydropneumatic suspension! Make sure to follow the installation instructions, especially regarding the seat's fore and aft position and the seat height, as they WILL be different from your usual settings. I intend to purchase four more of these for my other non e-bikes.

60 years old, 6’, 200lbs (maybe 205 after an entire large pizza). Installed on a new Specialized Vado e-bike. Rigid frame. My first ride on the bike was 3 hours and my butt HURT. Did a bit of research and got this Shockstop. My first idea was try it on the initial factory settings. Too squishy. Long story short I went through all the settings upward and landed on both springs with preload of 4. Seems a bit high for ~200 lb’er but I liked it. Off I went. Four short rides later I love it and it’s perfect. Absorbs all the little cracks and imperfections and even curbs.

This is overpriced but appreciably better than the low cost options. I don't have much experience using inexpensive pogo-style shock posts, but I understand anecdotally that they're OK for people who cruise around at low speed and pedal about 40 RPM and don't care about performance. That's fine, those people aren't wrong, but I'm not those people. I'm also not a lycra clad, mirror-wielding endurance cyclist who pushes my body to the point of breakdown on every ride. I'm a casual bicycle riding enthusiast who likes long wheelbase road bikes and gravel bikes. The Creo is my first real aluminum frame bike and I don't care for the rigidity of it, so I was in the market for a solution. This is what I ended up with. I weigh about 170 lbs and I'm using the single spring and have the preload set to about 4. For me, this works pretty well. I do find that if I hit a route that has bumps at just the wrong interval, I will get some harmonic bobbing, but for the most part this seat post does its job very well and is more or less transparent. I don't feel like it robs me of much power, but based on my bike's built in power meter and app, it does (hard to do head to head testing since I'm not a robot and can't output exactly the same one day to the next). I like that if I lean back all the way on the seat, like when I'm stopped at a light, it gives enough so I can get my feet flat on the ground. I get back in riding position and I'm back up in the air another inch or so. It's a very nice riding companion and compliments the FutureShock1.5 already included with the bike; I'm a little surprised premier bike mfgs. haven't come up with their own (proprietary) solutions to this problem! Why not 5 stars? The price. $230 for the "entry level" post is pretty high. Amazon has this one and the high end model, but not the in between model, which is probably the one best suited for my situation, but that costs even more. How much should it cost? It probably cost $40 to build. I don't pay attention to TV or social media but I understand this and other Redshift products are marketed HEAVILY, so it aggravates me that a product I found through research is overpriced to DEATH because they blow all the profits producing highly polished commercials and giving products away to shills. But what else is new. I've got under 100 miles on the post but I'll update the review if I run into any issues. For the money, I expect to be taken care of if anything should happen.

This product dramatically improved my ride comfort.

Unbelievably great! I am almost 68...and riding my fabulous ebikes ( Freesky Alaska and Wild Cat are mine... . Wife has a Freesky Rocky) bikes are my daily exercise . For daily use my Alaska (big one...dual batteries) does laps around our 3 acres nightly, usuallyat over14 mph. I have extra lighting so I miss most of the ruts/potholes in the yard...but I always manage to find them. All 3 of our bikes have full...front and rear....suspension but a 6" hole 4" deep at 12mph plus still transmitts that jolt into your back even with a great older age gentleman wide seat. I added this yesterday..... Unbelievable! It definitely catches what the rear shock doesn't catch and it's fluid smooth! I can’t describe the difference. It is fully tunable...so as I loose weight, adjustmen is super easy! VERY SATISFIED!!! Because my ebikes are 30.9mm tubes, be sure to get the correct shim....I purchased a 27.5 to 30.9. Excellent fit! I also replaced my lever quick release with one that is more secure...that is tightened via a hex screw. I am about to purchase a 2nd one for my Wild Cat....and I'm sure once my wife tries it...it will be a third purchase. FYI...Because of the larger tube and beefed up locking ring, I am not using the provided "magnetic fender". Get this...your back is worth every penny! I'm an engineer...and a pilot...and appreciate well engineered things...this gets a 10 out of 5 star rating!! Oh....it's also a little shorter than others available out there..90mm from max insertion to seat rail. Most of the others average over 100mm.

I enjoy every mile with it. Saves my back.

Excellent product & service.

Es caro pero vale lo que cuesta.

This is my 3rd order from RedShift Seatpost Suspension. Did ride with the first purchase for more then 1500Km and still keep goin without any issue. You can read more review from internet but here are my personal views base on my own experience without bias. Advantage: 1) Enhance your riding experience. The suspension will soak all the small bumps and small vibration from your rear tyre. 2) You will clock in more mileage due to induce fatigue. 3) If you have any back pain issue and wanted to ride, this seatpost for you. 4) Zero maintenance. 5) Every single ride will make a big smile on your face. Disadvantage: 1) Weight penalty, add more weight to your bike, around 415g for 350mm & 380g for 280mm.(Specs taken from Redshift website) 2) Pedal bob effect reduced your power transfer. 3) For adjustment, you need to removed the seatpost. 4) Design only for circular seatpost and not for aero seatpost design. 3) Expensive for single component. Hope this will help you guys for the purchase.

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