Zoom

Zoom ZUKKA Bike Suspension Seat Post Shock Absorber

3.9 (179 reviews)
11.8 inch17 inch110lbs220lbs

Absorb road vibrations and trail impacts with this aluminum suspension seatpost featuring 55mm of spring-loaded travel.

$17.99*
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*Price sourced from Amazon.com. Last updated:Jul 21, 2026.Price and availability are subject to change.

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Overview

The Zoom ZUKKA Suspension Seat Post is designed to add a layer of shock absorption between the rider and the bike frame, reducing the fatigue and discomfort caused by road vibrations, potholes, and trail irregularities. The seatpost uses a dual-mechanism suspension system combining an internal coil spring with a damper rubber insert. The coil spring handles larger impacts and compressions, while the damper rubber smooths out smaller high-frequency vibrations, resulting in a more comfortable ride across varying terrain. With 55mm of vertical travel, the seatpost provides a meaningful amount of cushion without dramatically altering the bike's geometry or pedaling feel.

Constructed from 6061 aluminum alloy, the seatpost weighs 498g and features a polished anodized finish that resists corrosion — a practical consideration for riders who encounter wet conditions. The 27.2mm diameter and 300mm length fit a wide range of bike frames, and the seatpost is marketed as compatible with road, mountain, track, fixed-gear, and BMX bicycles. A key feature is the adjustable preload mechanism at the base, which allows riders between 50kg and 100kg to fine-tune the spring tension to match their weight for optimal shock absorption. It is important to note that no saddle clamp is included — riders will need to source one separately to mount their saddle to the seatpost.

Key Features

PAY ATTENTION:Please do measure the actual required diameter before purchasing. Saddle clamp is not included, please buy the saddle clamp separately if needed.

SEATPOAT SIZE: 27.2*300 mm (1 x 11.8 inch). Shock absorb travel 55 mm /2.17 inch.

SPRING COIL SUSPENSION:Bicycle seat post has built-in spring coil and damper rubber , which are designed to absorb vibration during riding and bring a comfortable riding experience.

EASY TO USE:The bottom of the bicycle suspension seatpost is designed with an adjustable preload, which can change the required force according to the rider's weight to achieve a good vibration absorption effect. Note: It is suitable for riders weighing 50kg/110lbs to 100kg/220lbs.

HIGH QUALITY:Made of aluminum body ,lightweight and durable.Polished anodized finish, never rust.

UNIVERSAL FIT:Suitable for most bike,such as road /mountain /track bike, fixed gear bicycle, downhill bike, MTB, BMX.

Specifications

Brand
Zoom
Model
SPZOOM-27.2-SL
Diameter
27.2mm
Length
300mm (11.81 inches)
Suspension Travel
55mm (2.17 inches)
Weight
498g (1.1 lbs)
Material
6061 Aluminum Alloy
Finish
Polished Anodized
Suspension Type
Coil Spring with Damper Rubber
Rider Weight Range
50kg–100kg (110–220 lbs)
Preload
Adjustable
Saddle Clamp
Not included
Compatible Bike Types
Road, Mountain, Track, Fixed Gear, BMX

Frequently Asked Questions

This seatpost has a 27.2mm diameter. You must measure your bike's seat tube before purchasing to confirm compatibility, as seatposts are not interchangeable between different diameters.
No. The saddle clamp is not included and must be purchased separately.
Yes. The bottom of the seatpost has an adjustable preload mechanism that lets you tune the spring resistance based on your weight, within the supported range of 50kg to 100kg (110 to 220 lbs).
The seatpost provides 55mm (2.17 inches) of vertical shock-absorbing travel.
It is constructed from 6061 aluminum alloy with a polished anodized finish for corrosion resistance and durability.