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REDSHIFT SHOCKSTOP ENDURANCE SUSPENSION SEATPOST
The minimal design of the ShockStop Seatpost blends seamlessly with the aesthetic of modern gravel, road, and e-bikes. Along with the ShockStop Stem, this system works together to reduce fatigue and strain, letting you ride further, faster, and more comfortably.
Benefits:
• Go further - reducing fatigue from bumps and vibrations
• 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
Details:
• 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 varied rider weight and preference
• Optimized linkage geometry provides ultra-responsive suspension feel
• Check technical specifications for compatibility
What's in the Box:
• 1 x ShockStop Seatpost• 2 x springs (1 pre-installed, 1 included in box for increased stiffness)
• All required hardware
| Diameter | 27.2 mm (shims available for larger seat tube sizes) |
| Length | 350 mm (14 in) |
| Suspension Travel | 35 mm (1.4 in) |
| Rearward Offset | 7 mm (0.27 in) |
| Rearward Offset (@ 25% travel) | 12 mm (0.47 in) |
| Spring Pre-load | User Adjustable |
| Weight | 547 g - w/main spring |
| Rider Weight Limit | 110 kg (242 lb) |
| Material | 6061 T6 Aluminum Alloy |
| Saddle Rail Compatibility | 7mm round & 7x9mm oval |
| Di2 Battery Compatibility | Yes (requires mount kit sold separately) |
 
What is the minimum and maximum insertion depth and clearance for the ShockStop Seatpost?
What kind of saddle bags can I use with the ShockStop Suspension Seatpost?
Most standard strap-based saddle bags will fit the ShockStop 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 Seatpost so that you can adjust it to perfectly match your weight and riding style. The 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.
 
Download Instructions (PDF):
Instructions - ShockStop Suspension Seatpost
Instructions - Di2 Battery Holder for ShockStop Seatpost
Installing the ShockStop Seatpost:
 
Video Section Time-Stamps:
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 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