---
product_id: 460642712
title: "REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes"
brand: "redshift"
price: "€ 295.90"
currency: EUR
in_stock: true
reviews_count: 9
category: "Redshift"
url: https://www.desertcart.ie/products/460642712-redshift-shockstop-endurance-suspension-seatpost-for-bicycles-shock-absorber-bike
store_origin: IE
region: Ireland
---

# Fits 4 diameters & 4 lengths, easy install Up to 60% vibration & bump dampening 35mm tunable suspension travel REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes

**Brand:** redshift
**Price:** € 295.90
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Elevate your ride: smoother, faster, unstoppable.

## Quick Answers

- **What is this?** REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes by redshift
- **How much does it cost?** € 295.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/460642712-redshift-shockstop-endurance-suspension-seatpost-for-bicycles-shock-absorber-bike)

## Best For

- redshift enthusiasts

## Why This Product

- Trusted redshift brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **60% Less Road Buzz:** Patent-pending tech absorbs shocks and vibrations so you stay comfortable and focused mile after mile.
- • **Custom-Tuned Comfort:** Adjust preload and swap springs for a personalized ride that matches your style and weight.
- • **Maintenance-Free Durability:** Built to last with zero upkeep, so you spend more time riding and less time worrying.
- • **Ride Farther, Faster, Smoother:** Endurance suspension lets you conquer rough terrain with less fatigue and more control.
- • **Universal Fit, Instant Upgrade:** Multiple sizes fit any road, gravel, hybrid, or e-bike—installation in minutes, no hassle.

## Overview

The REDSHIFT ShockStop Endurance Suspension Seatpost delivers 35mm of tunable suspension travel that reduces bumps and vibrations by up to 60%, dramatically increasing rider comfort and control. Compatible with road, gravel, hybrid, and e-bikes, it offers multiple size options for a perfect fit and installs quickly without maintenance. Designed for serious cyclists seeking to extend their ride and reduce fatigue, this seatpost transforms any bike into a smoother, more efficient machine.

## Description

desertcart.com : REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes : Sports & Outdoors

Review: Works as advertised - 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.
Review: Expensive? You bet. Worth it? Absolutely! - 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.

## Features

- RIDE FARTHER, FASTER, AND MORE COMFORTABLY – The ShockStop bicycle endurance suspension seatpost is the perfect upgrade to your road, gravel, bikepacking, all-road, hybrid and e-bike with standard sizes to fit any brand of bike. More comfort at the saddle means you’ll be able to ride longer, go faster, and stay in control even on the roughest terrain. Choose from 4 lengths (280, 350, 400, and 450mm) and 4 diameters (27.2, 30.4, 30.9, and 31.6mm) in order to get the best fit for your bike.
- DAMPEN BUMPS AND VIBRATION BY UP TO 60%! – Say goodbye to your sore butt and pain from riding and say hello to increased control, more confidence, and a super smooth ride. The patent-pending ShockStop Suspension Seatpost for bicycles reduces the effects of bumps, shocks, and road buzz by up to 60%!
- REDUCE FATIGUE AND INCREASE EFFICIENCY – Stop wasting energy suspending your body to absorb impacts and vibrations. This shock absorber bike seatpost allows you to stay in the saddle and keep pedaling even over the most extreme terrain. Consistent power output and reduced fatigue enables you to go further and faster on the bike you already own.
- 35mm OF TUNABLE SUSPENSION TRAVEL – The ShockStop bike suspension seatpost has 35mm of tunable, ultra-responsive suspension travel. The optimized four-bar linkage ensures that your saddle angle remains constant through the full range of travel. Adjust the preload and swap in and out springs to find your perfect setup and match the seatpost to your preferred riding style.
- EASY TO INSTALL AND MAINTENANCE FREE – The multiple diameter and length options allow this shock-absorbing seatpost to fit all modern bikes and installs in minutes (shims are available to fit additional sizes).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09FTGHH1S |
| Best Sellers Rank | #114,112 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #67 in Bike Seat Posts |
| Brand Name | REDSHIFT |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,203) |
| Date First Available | September 9, 2021 |
| Global Trade Identification Number | 00850027370279 |
| Included Components | Seatpost |
| Item Dimensions LxWxH | 19.69 x 19.69 x 11.02 inches |
| Item Package Dimensions L x W x H | 16.42 x 4.92 x 2.56 inches |
| Manufacturer | REDSHIFT |
| Model Name | Seatpost |
| Package Weight | 0.66 Kilograms |
| Part Number | RS-50-02-MB |
| Size | 27.2mm Dia x 280mm Length |
| Suggested Users | unisex-adult |
| UPC | 850027370279 |
| Warranty Description | 2 year manufacturer |

## Product Details

- **Brand:** REDSHIFT
- **Color:** Black
- **Item Weight:** 0.7 Kilograms
- **Material:** Aluminum
- **Product Dimensions:** 1.07"W x 13.78"H

## Images

![REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes - Image 1](https://m.media-amazon.com/images/I/418icN3mqFL.jpg)
![REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes - Image 2](https://m.media-amazon.com/images/I/41OiRIRwI+L.jpg)
![REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes - Image 3](https://m.media-amazon.com/images/I/61D3uiwiabL.jpg)
![REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes - Image 4](https://m.media-amazon.com/images/I/61FY9UO0y4L.jpg)
![REDSHIFT ShockStop Endurance Suspension Seatpost for Bicycles, Shock-Absorber Bike Seat Post for Road, Gravel, Hybrid, and E-Bikes - Image 5](https://m.media-amazon.com/images/I/61kZfQ8K+BL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as advertised
*by J***1 on June 30, 2025*

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.

### ⭐⭐⭐⭐⭐ Expensive? You bet. Worth it? Absolutely!
*by G***E on October 21, 2023*

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.

### ⭐⭐⭐⭐⭐ What a Difference!!!
*by T***M on May 27, 2023*

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.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-26*