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“Provides a smooth and comfortable ride with less fatigue on longer rides” - Peter L

Rated 4.9/5

ShockStop Suspension Stem

ShockStop Suspension Stem

  • Smooth out bumps and vibrations for lasting comfort
  • Up to 20mm of suspension travel
  • Fine-tune stiffness and feel with swappable elastomers
Regular price $199.99
Regular price $0.00 Sale price $199.99
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Description

Every ride has its rough patches — whether it’s harsh gravel, city potholes, or long stretches of broken tarmac. The patented ShockStop Suspension Stem is engineered to take the sting out of any route. Reduce fatigue and maximize comfort without losing speed or control. It’s the essential comfort upgrade, trusted by cyclists for everything from gravel/road adventures to daily commutes.  

• COMPATIBILITY NOTE: If you have a Canyon, Giant, or Scott, it may have a non-standard oversized steerer tube. We have a version that will fit these bikes. If you're unsure if your steerer tube is standard or oversized, please contact us in the chat or email us at support@redshiftsports.com and we can help you choose the right version.

Technical Specifications

 

 80-120mm Lengths55, 70mm Lengths (NEW)
Weight256 g +/- 6 deg, 80mm
266 g  +/-6 deg, 90mm
278 g  +/-6 deg, 100mm
290 g  +/-6 deg, 110mm
302 g  +/-6 deg, 120mm
253 g  +30 deg, 80mm
278 g  +30 deg, 100mm
185 g +6 deg, 55mm
212 g +6 deg, 70mm
Steerer Clamp Diameter (A)Standard 1-1/8 inch (28.6 mm)
Oversized 1-1/4 inch (31.8mm, for +/-6 deg options only, available here)
Standard 1-1/8 inch (28.6 mm)
Handlebar Clamp Diameter (B)31.8 mm31.8 mm
Effective TravelUp to 20mmUp to 20mm
Material6061 T6 aluminum6061 T6 aluminum
Rider Weight Limit135 kg (300 lb)135 kg (300 lb)
Steerer Tube Clamp Stack Height40mm44mm
Compatibility

Drop Bars and Flat Bars

note: flat bars with large back sweep might reduce effectiveness; see our FAQ or contact us.

Drop bars only
Intended UseASTM F2043 Class 2 - For on and off-road riding and drops less than 15cm (6").ASTM F2043 Class 2 - For on and off-road riding and drops less than 15cm (6").

Instructions

55mm & 70mm Lengths [NEW]:

Download (PDF) Instructions:Instructions - ShockStop Suspension Stem - 55mm & 70mm lengths
Elastomer Selection Chart:Elastomer Selection Chart for 55mm & 70mm ShockStop Stems


 

Installation Video (55 & 70mm Stems):

 



 

80mm Length:

Download (PDF) Instructions:Instructions - ShockStop Suspension Stem - 80mm length
Elastomer Selection Chart:Elastomer Selection Chart for 80mm ShockStop Stem


 

Install and Removal Video (80mm Stem):

 

Elastomer Install and Removal for 80mm ShockStop Stem:

 

 



 

90-120mm Lengths:

Download (PDF) Instructions:(FOR TORX BOLT VERSION) Instructions - ShockStop Suspension Stem - 90-120mm lengths
Download (PDF) Instructions:(FOR HEX BOLT VERSION - OLDER STEMS) Instructions - ShockStop Suspension Stem - 90-120mm lengths
Elastomer Selection Chart:Elastomer Selection Chart for 90-120mm ShockStop Stems


 

Installation Video (90-120mm stems):

Shipping Info

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Smooth. Controlled. Effortless. The Future of Suspension

Years of research, cutting-edge technology, and rider-focused design—built to revolutionise your ride.

Adjustable Stiffness

Fine-tune your ride with customizable settings, optimising comfort and performance for any terrain.

Precision-Engineered Shock Absorption

Eliminates road buzz and dampens impact forces, reducing strain on hands, wrists, shoulders and back.

Optimised for All Riding Styles

Whether you're racing, exploring or commuting, we have an option that is designed to improve your riding experience.

Redshift trusted by
200,000+

  • roadies
  • gravel grinders
  • commuters
  • adventurers
  • weekend warriors

As seen in

  • Spencer

    Bought this post because of the AWFUL Chicago streets, and I am overjoyed at it's performance. I love that it is adjustable, feels extremely well-made, and enhances the look of my e-bike. Thank you for such a thoughtful product, my butt especially thanks you.

Money well spent!

  • William S

    This is a great addition to my gravel bike. It took a few adjustments to get the right elastomers but, it definitely smooths out the ride. Will be purchasing a set for my road bike.

  • Scott C

    This seat post is a game changer!! Absolutely love it on my gravel bike .gonna get one for my hard tail Mtb now

  • TD

    Love the stem!! It really takes out all the worse bumps from your ride, and on rough trails really did offer a smooth comfortable ride.

  • Lawrence C

    I hesitated buying this stem wondering would it work, was it a waste of money but I’ve had three off road rides with my new stem and I love it. I usually get pins and needles in my hands after riding for a while but that’s gone now. Added to the comfort is the improved handling on bumpy tracks and roads. I can ride a corrugated road now without feeling like I will get shaken off the bike. Very happy.

  • Jim G

    I love my Redshift post! I recently had a lumbar contusion and the post has smoothed and cushioned the roads and trails. I’m able to stay on the bike while healing.

  • Ian S

    After much thought I bought a red shift suspension stem and initial thoughts are that it's good, think they will become standard across all my gravel bikes.

  • Stephen H

    I just finished my first ride with the Resdhift Shockstop Suspension Stem and I noticed the difference immediately. Having ridden for many years with rigid front ends (I’m 64) I now wish I had discovered this earlier in my life. The chatter that it removes from my wrists, arms and shoulders is easily noticed. This experience has been so good that now I’m considering the seatpost Redshift offers as well. The interesting thing for me is that I’ve promoted and sold these products for years based upon input from others. I just didn’t think I needed one myself. Get yourself one! You’ll never go back.

  • Mark G

    The shock absorber was easy to install and works as described cuts down on the impact. I recommend it if you're going to do gravel, writing and bumpy bumpy roads

  • Karlos R

    Wow, once I got the fit dialed on this seat post I thoroughly understood why everyone was upgrading their set ups with these products. Riding a long distances is what I do for fun and for a living and this seatpost made all the difference in the world. Pay attention to the recommended Sag settings as its key to finding comfort and keeping a proper pedaling extension. 10 out of 10 would recommend.

Perfect For

  • Gravel Riding

    Absorbs rough terrain and vibrations, improving comfort and control on long gravel rides.

  • Road Cycling

    Reduces road buzz and impact from potholes, allowing for a smoother, more efficient ride

  • Bikepacking & Touring

    Minimises fatigue on long-haul adventures, making multi-day rides more comfortable

  • Commuting

    Handles city streets, curbs, and uneven surfaces with ease for a more enjoyable daily ride.

Customer Reviews
4.9 Based on 1,023 Reviews
5 ★
92% 
941
4 ★
8% 
82
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
Customer Photos
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Filter Reviews:
MT
01/29/2025
Marcos T.
United Kingdom United Kingdom

Great product for those with hand/wrist issues

It might seem unnecessary buying this for a road bike, but if you’re familiar with UK roads you’ll relate! I’ve suffered with wrist/hand pain for a number of years and have thrown just about everything at the problem. The stem gives a noticeable improvement in hand comfort, even on ‘regular’ tarmac. It’s not intrusive, but it does feel like you’re riding a road bike shod with big mountain bike tyres instead of road ones. I’m even seeing an improvement in average speeds as I’m less impacted by that constant buzz through hands and wrists. Would thoroughly recommend if you’ve suffered like I have!

AB
01/28/2025
Andre B.
Canada Canada

Suspension stem review

I purchased my suspension stem, however, because I live in a northern climate, ( lots of snow) I have not used the new stem , hence unable to give a proper review until April 2025, or when the snow cover will be out.

LR
01/28/2025
Laura R.
Spain Spain

El cambio que necesitaba

Mis salidas de gravel han cambiado de forma drástica con esta potencia. Ahora puedo aguantar más tiempo por sendas sin tanto cansancio en las manos y brazos. Una maravilla,

PJ
01/27/2025
peter j.
United Kingdom United Kingdom

Changed how I ride

Excellent not only off road but on road with the terrible state of uk roads,my Orro terra c gravel bike is a totally new experience before I was suffering with tennis elbow but now nothing at all,considering putting one on my giant defy road bike definitely recommend.

SS
01/24/2025
Simon S.
Australia Australia

Excellent product

Outstanding. Light speed delivery. Excellent installation instructions. Simple installation. Great ride feel. So much easier on the body with the edges knocked off the bumps.

IM
01/22/2025
Iain M.
Australia Australia

Delivers on the claims made

Great suspension that does what Red Shift say it does. Happy with the increased comfort and control taking out road vibrations and it was very easy to fit and adjust. I've been using the suspension stem for a month now, all seems very reliable.

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