Redshift Shockstop Endurance Suspension Seatpost

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 and reduce the impact to the rider. They are best suited for gravel biking and bikepacking applications but are also used on road bikes to help riders stay in the saddle through rough course areas. Suspension seatposts are often used on hybrid, city and e-bikes as well, especially in urban environments with shifting concrete conditions.

The Shockstop 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. 

The minimal design of the ShockStop Suspension Seatpost blends seamlessly with the aesthetic of modern gravel, road, and e-bikes. Along with the ShockStop Suspension Stem, this suspension system works together to reduce fatigue and strain, letting you ride farther, faster, and more comfortably.

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 reducing the amount of stress and fatigue on your body, 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, especially on technical terrain.

Diameter

27.2mm, 30.4mm, 30.9mm, 31.6mm  (shims available for additional non-standard seat tube sizes)

Length

280 mm (11 in)
350 mm (14 in)
400mm (15.7in)
450mm (17.7in)

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

280 mm – 497 g – w/main spring
350mm – 547 – 634g – w/main spring
400mm – 636 – 683g – w/main spring
450mm – 704 – 732g – w/main spring

Rider Weight Limit

110kg (242lb) for 27.2mm and 30.4mm diameters
120kg (264lb) for 30.9mm and 31.6mm diameters

Material

6061 T6 Aluminum Alloy

Saddle Rail Compatibility

7mm round & 7x9mm oval

Di2 Battery Compatibility

Only compatible with the 27.2mm diameter x 350mm length
(requires mount kit sold separately)

Intended UseASTM F2043 Class 2 – For on and off-road riding and drops less than 15cm (6″).