ShockStop PRO Race Suspension Seatpost

Regular price: $299.99
Sale price: $239.99

ShockStop PRO Race Suspension Seatpost

Regular price: $299.99
Sale price: $239.99

The patent-pending ShockStop PRO Race Suspension Seatpost delivers the ultimate ‘race-tuned’ suspension performance and up to 130 grams weight reduction compared to the original ShockStop Endurance Seatpost. This version combines coil spring and elastomer suspension technology to provide the best of both worlds; highly responsive to bumps and vibrations and subtle enough to disappear into the background while you smoothly deliver power. User adjustable stiffness lets you dial in the right feel to match your riding style.

Redshift has recently expanded our ShockStop Seatpost line, see the full product detail comparison here.

Seatpost Diameter & Length

Need a Seatpost Shim? *

More comfort at the saddle means you’ll be able to ride longer, go faster, and maintain control even on the roughest terrain. The minimal, lightweight design of the ShockStop PRO Race Suspension Seatpost blends seamlessly with the aesthetic of modern gravel and road bikes.

Benefits:

Race-tuned - the combination of coil springs and elastomers provides a progressive spring rate that lets the suspension work effortlessly to absorb the bumps and buzz of gravel or road riding, while still providing a firm foundation to maximize power delivered to the pedals. The PRO Race seatpost disappears into the background, letting you stay in control and focused, while leaving you less fatigued after every ride.
PRO Level - up to 25% weight reduction (130 grams!) from original ShockStop Endurance Seatpost and ultra-sleek styling
Go farther - reducing fatigue from bumps and vibrations
Ride faster - energy that is normally wasted suspending your body is converted into forward motion
Improve control - float over obstacles
For the ultimate suspension system, pair with the ShockStop PRO Stem or ShockStop Stem

Details:

The ShockStop PRO Race Seatpost is available in two length options:

280mm and 350mm

20mm of active suspension travel
Race-tuned progressive spring rate elastomers & coil springs
Optimized linkage geometry provides ultra-responsive suspension feel
Di2 battery compatible (using standard di2 adapter)
Check technical specifications for compatibility

What's in the Box:

1 x ShockStop PRO Race Suspension Seatpost
Pre-installed inside seatpost:

Outer Coil Spring
Inner Coil Spring
Green (Soft) Elastomer with End Caps

Included in box:

Red (Medium) Elastomer with End Caps

All required hardware

Suggested Configurations:

Yes, reconfigure your spring stack with any combination of springs and elastomers to fit your riding style. Seatpost is shipped with inner coil, outer coil and green (soft) elastomer with end caps. Stiffer configurations available, please contact us at support@redshiftsports.com.

Suggested PRO Suspension Seatpost Configurations

Diameter	27.2 mm (shims available for larger seat tube sizes)
Length	280 mm (11 in) 350 mm (14 in)
Suspension Travel	20 mm (0.8 in)
Rearward Offset	7 mm (0.27 in)
Weight	280 mm – 380 g (with 2 elastomers) 280 mm - 410 g (with 1 elastomers and double spring) 350 mm – 415 g (with 2 elastomers) 350 mm - 445 g (with 1 elastomer and double spring)
Rider Weight Limit	110 kg (242 lb)
Material	6061 T6 Aluminum Alloy
Saddle Rail Compatibility	7mm round & 7x9mm oval
Di2 Battery Compatibility	Yes - standard battery holders will fit
Intended Use	ASTM F2043 Class 2 - For on and off-road riding and drops less than 15cm (6").

What is the minimum and maximum insertion depth and clearance for the ShockStop 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 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 adjustable?

To read more Frequently Asked Questions, click here.

Download Instructions (PDF):
Instructions - ShockStop PRO Race Suspension Seatpost

Installing the ShockStop PRO Race Suspension Seatpost:

Please start at 6:55 for tips on installing the ShockStop PRO Seatpost. At The beginning of the video aspects of the original ShockStop Endurance seatpost are reviewed that are not relevant to the PRO version

Video Section Time-Stamps:

00:14 Compatibility
01:41 Choosing Your Starting Setup (not applicable to Pro seatpost)
03:00 Installing Inner Spring (not applicable to Pro seatpost)
05:36 Setting Initial Preload (not applicable to Pro seatpost)
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