The patent-pending ShockStop Suspension Seatpost provides 35mm of tunable, ultra-responsive suspension travel for the ultimate bump-eating comfort. Ride further, faster, and more comfortably on the bike you already own, while the ShockStop Suspension Seatpost lets you float over rough terrain.
The minimal design of the ShockStop Suspension Seatpost blends seamlessly with the aesthetic of modern gravel, road, and e-bikes. Along with the ShockStop Stem, this suspension system works together to reduce fatigue and strain, letting you ride further, faster, and more comfortably.
• Go further - reducing fatigue from bumps and vibrations with a superior shock absorber • Ride faster - energy that is normally wasted suspending your body is converted into forward motion • Take control - customize your suspension feel to float over obstacles and maintain control
• The ShockStop Suspension Seatpost is available in two length options: - 280mm and 350mm
• 35mm of active suspension travel
• Infinitely adjustable stiffness via pre-load adjustment and swappable springs
• Adjusting stiffness / pre-load does not reduce travel
• Swappable springs included to accommodate heavier riders and/or ride preference
What is the minimum and maximum insertion depth and clearance for the ShockStop Suspension Seatpost?
What length should I choose? 350mm or 280mm?
350mm is our standard size, but we developed the 280mm to allow for a wider range of fits.
Measure your current seatpost from the clamp collar to the saddle rail - If that distance is less than 205mm, you can use the 280mm seatpost. If not, order the 350mm size.
What kind of saddle bags can I use with the ShockStop Suspension Seatpost?
Most standard strap-based saddle bags will fit the ShockStop Suspension Seatpost without issue. If your saddle bag uses rigid clips, clamps, or some other inflexible attachment method, it's possible that your bag may not be compatible. Any bag that just attaches to the saddle or just attaches to the post is fine. But when you attach to both the post and the saddle you need to account for the relative motion of the saddle to the post. This means that if you cinch down the bag when off the bike it might have some movement when you get on the saddle and compress the post a bit - this might not be a problem but it might be something that is an issue. It all really depends on weight and how stable the bag is and if it is attached to both the post and the saddle - it can be fine but with a lot of weight it will mean it can move around when the post is compressed. It will likely come down to testing it out with your specific bag to see how it works. And if you have a bag that is able to be secured to just the post or to the post and a rear rack then you will be all set.
Is the stiffness of the ShockStop Seatpost adjustable?
Absolutely - We designed the ShockStop Suspension Seatpost so that you can adjust it to perfectly match your weight and riding style. The Shockstop Suspension Seatpost comes with a standard spring and an additional spring that can be added inside the standard spring to increase the stiffness. The preload adjustment knob at the bottom of the seatpost allows you to adjust the spring preload - the amount of force required to cause the saddle to start moving.
To read more Frequently Asked Questions, click here.
00:14 Compatibility 01:41 Choosing Your Starting Setup 03:00 Installing Inner Spring 05:36 Setting Initial Preload 06:55 Measuring Your Existing Saddle Position 08:11 Installing the Shockstop Suspension Seatpost in Your Bike 09:56 Installing the Saddle 11:42 Positioning Your Saddle 14:03 Tightening the Saddle Clamp Bolts 16:27 Setting 20% Sag 18:22 Maintenance
"THE SHOCK STOP SEATPOST IS A SLEEK LOOKING, COMPACT DESIGN INITIAL IMPRESSIONS ARE QUITE FAVORABLE ACROSS THE THREE TESTERS" - GUITAR TED, RIDING GRAVEL
EXTRAORDINARY COMFORT. I WAS AWARE OF SURFACE UNDULATIONS, BUT THE SHOCKSTOP IS SO REACTIVE THAT NO IMPACTS OR VIBRATIONS MADE IT TO THE SADDLE. - ROBIN WILMOTT, BIKERADAR
"THE POST IS QUITE ACTIVE WITHOUT FEELING BOUNCY. IT IS A GAME-CHANGER ON AND OFF-ROAD, DOWNHILL AND UP IN THAT YOU CAN SIT IN TO APPLY THE POWER OVER BUMPY TRACK." - CLIFF LEE, CX MAGAZINE
"DO I RECOMMEND IT? YES. WHAT REALLY COUNTS IS EVERYDAY COMFORT, AND REDSHIFT SUSPENSION SEATPOST DEFINITELY DELIVERS THAT!" - GRAVELBIKES.CC
"THE SHOCKSTOP SEATPOST REVOLUTIONIZES THE WAY YOU RIDE YOUR BIKE. IT'S SIMPLE AND, MORE IMPORTANTLY, WORKS LIKE A CHARM." - JORDAN CARTER, GEAR HUNGRY
I'M A BIG FAN OF THIS SEATPOST. THE SUSPENSION ACTION IS JUST SO SMOOTH. - STU KERTON, ROAD.CC
AFTER TESTING... IT WON ME OVER. I LIKE THE REDSHIFT ENOUGH TO KEEP IT ON - RUSS, PATH LESS PEDALED
THE SHOCKSTOP SEATPOST IS IMPRESSIVE. IT VIRTUALLY ERASES SMALL AND MID-SIZED BUMPS AND DOESN’T BOB EXCESSIVELY ON SMOOTHER SURFACES. - MATT GERSIB, RIDING GRAVEL
DEFINITELY SOMETHING I WOULD ADD TO MY STABLE - COLIN LEVITCH, CYCLIST
Different bikes sometimes have different seatpost diameters. The ShockStop Suspension Seatpost is 27.2mm in diameter, so if your bike's seatpost is larger, you'll need a shim to adapt our seatpost to your bike's frame. Don't worry though, the shims are super-lightweight and essentially invisible once installed.
Not sure what size seatpost you have currently? There are a couple different ways to find out.
• Most seatposts have the diameter printed somewhere near the bottom of the post. You'll need to remove the seatpost from the bike frame (mark your existing seatpost height with a bit of tape before you remove it so you can replace it easily), and look for a number like 27.2, 30.9, or 31.6 (etc.). That is the diameter of the post. • If you know the make, model, and year of your bike, you may be able to look up the seatpost diameter online. Feel free to shoot us an email at firstname.lastname@example.org - we'll see if we can help out. • Ask your local bike shop - they'll be able to accurately measure your bike's seatpost.
Non-compatible posts: Unfortunately, if your bike's seatpost is smaller than 27.2mm (for example, the 25.4mm posts found on some recent model Cannondale Synapses) our seatpost is currently not compatible with your bike. Likewise, if you have a bike with an aero/oval/non-round seatpost, or if your bike has an integrated seatmast, the seatpost is also not compatible.
What length should I choose? 350mm or 280mm?
350mm is our standard size, but we developed the 280mm to allow for a wider range of fits. Measure your current seatpost from the clamp collar to the saddle rail - If that distance is less than 205mm, you can use the 280mm suspension seatpost. If not, order the 350mm size.
Di2 Battery Holder
ShockStop Suspension Stem
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