ShockStop City Suspension Seatpost

Regular price: $179.99
Sale price: $179.99

ShockStop City Suspension Seatpost

Regular price: $179.99
Sale price: $179.99

The patent-pending ShockStop City Suspension Seatpost provides 35mm of tunable, ultra-responsive suspension travel for the ultimate bump-eating comfort. Designed specifically for e-bikes, commuting and city riding to help you ride farther, faster, and more comfortably on the bike you already own.

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

Seatpost Diameter & Length

Need a different size? Add a shim

Ships end of May

• More comfort & less fatigue - the ShockStop City Seatpost smooths out your ride and reduces fatigue from bumps and vibrations with superior shock absorption.
• Better performance & complete control - customize your suspension seatpost feel to float over obstacles and maintain traction and control.
• Ride faster & farther - energy that is normally wasted suspending your body over bumps, cracks and potholes is converted into forward motion.

Features

• 35mm of active suspension travel optimized for e-bikes, commuting, city riding, and recreation

• Optimized linkage geometry provides ultra-responsive suspension feel

• 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

• Check technical specifications for sizes & compatibility

What's in the Box:

• 1 x ShockStop City Suspension Seatpost
• 2 x springs (1 pre-installed, 1 included in box for increased stiffness)
• All required hardware

What is a Suspension Seatpost?

A suspension seatpost is a specially designed bicycle seatpost featuring shock absorbing construction that helps smooth out bumps in the terrain to reduce the impact to the rider.

The ShockStop lineup of suspension seatposts feature a proprietary parallelogram design, which allows for the suspension to remain active even when you're seated and pedaling. This means that you can benefit from the suspension's smoothing effect even when you're putting down power, unlike some suspension seatposts that become rigid when you're pedaling. Check out a comparison of our entire lineup of seatposts here.

Benefits of a Suspension Seatpost

Improved comfort: Suspension seatposts help to absorb shocks and vibrations from rough roads, reducing stress and fatigue on your body, especially your hands, arms, and back. This can lead to a more comfortable ride and reduced risk of injury.

Improved control: By absorbing shock and vibrations, a suspension seatpost can help to maintain traction and stability on rough roads, allowing you to ride with more confidence and control.

Reduced fatigue: By allowing you to stay seated & pedaling more often on rough terrain, a suspension seatpost can help you to conserve energy and ride for longer without feeling as tired.

Better performance: By allowing you to maintain traction and control on rough roads, a suspension seatpost can help you to ride faster and more efficiently.

Diameter and Lengths Available

30.9mm x 350mm, 30.9mm x 400mm
31.6mm x 350mm, 31.6mm x 400mm

Diameter	30.9mm, 31.6mm
Length	350 mm (14 in) 400mm (15.7in)
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	350mm – 612 - 652g - w/main spring 400mm – 635 - 680g - w/main spring
Rider Weight Limit	139kg (308lb)
Material	6061 T6 Aluminum Alloy
Saddle Rail Compatibility	7mm round
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 Suspension Seatpost?

What length should I choose?

Measure your current seatpost from the clamp collar to the saddle rail and refer to the chart above to choose your preferred size - if your required length or diameter is not available in the City Seatpost, we have more options available in the Endurance Seatpost.

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.

Download Instructions (PDF): coming soon