---
product_id: 540342400
title: "340mm/13.4\" Rebound Damping Universal 7mm Spring Rear Suspension Air Shock Absorber MTB Motorcycle For BWS 125 Dirt Bike Gokart Quad ATV Nmax Xmax Aerox"
brand: "hegeiisy"
price: "$431"
currency: NZD
in_stock: true
category: "Hegeiisy"
url: https://www.desertcart.nz/products/540342400-340mm-13-4-rebound-damping-universal-7mm-spring-rear-suspension
store_origin: NZ
region: New Zealand
---

# 340mm eye-to-eye length 7mm adjustable spring thickness 250kg max load per pair 340mm/13.4" Rebound Damping Universal 7mm Spring Rear Suspension Air Shock Absorber MTB Motorcycle For BWS 125 Dirt Bike Gokart Quad ATV Nmax Xmax Aerox

**Brand:** hegeiisy
**Price:** $431
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your ride with precision damping — because every bump deserves mastery.

## Quick Answers

- **What is this?** 340mm/13.4" Rebound Damping Universal 7mm Spring Rear Suspension Air Shock Absorber MTB Motorcycle For BWS 125 Dirt Bike Gokart Quad ATV Nmax Xmax Aerox by hegeiisy
- **How much does it cost?** $431 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/540342400-340mm-13-4-rebound-damping-universal-7mm-spring-rear-suspension)

## Best For

- hegeiisy enthusiasts

## Why This Product

- Trusted hegeiisy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heavy-Duty Load Capacity:** Supports up to 250kg per pair, perfect for riders demanding both comfort and strength.
- • **High-Performance Damping:** Low-friction piston rod and N.O.K oil seals ensure smooth rebound and superior shock absorption on any terrain.
- • **Adjustable Spring Tension:** Customize your ride comfort and handling with a 7mm thick spring featuring built-in preload adjustment.
- • **Universal Fit for Versatility:** Compatible with a wide range of motorcycles, ATVs, gokarts, and dirt bikes—your all-in-one suspension upgrade.
- • **Precision CNC Machined Durability:** Engineered with high-strength steel and aluminum alloy for over 1 million cycles of reliable performance.

## Overview

This 340mm rear suspension air shock absorber combines solid steel and aluminum alloy construction with precision CNC machining to deliver durable, adjustable damping for motorcycles, ATVs, and gokarts. Featuring a 7mm thick spring with preload adjustment and a max load capacity of 250kg per pair, it ensures smoother rides, enhanced handling, and long-lasting performance compatible with a broad range of popular models.

## Description

Hegeiisy 340mm/13.4" Rebound Damping Universal 7mm Spring Rear Suspension Air Shock Absorber MTB Motorcycle For BWS 125 Dirt Bike Gokart Quad ATV Nmax Xmax Aerox : desertcart.co.uk: Automotive

## Features

- Eye thickness: 21mm. Thickness of the spring: 7mm. Spring width: 65mm. Max loading: 250kg/pair 550lb/pair.
- Recovery damping design, hard anodized, low friction piston rod and eyelet, built-in adjustable preload for all applications. Precision CNC machined components, a variety of spring rates are available to use with a variety of riders. Multiple bearing size options for more street and retro bikes.
- Oil seal by N.O.K (japanese high standard). The eye of shock has tensile strength moree than 2000kgf. The dumper and spring designed for long durability(more than 1 million).
- High-performance air shock absorber: The suspension provides smoother driving and better overall damping management, improving driving comfort, motorcycle handling and driving safety. It is good quality and replacement for some Gokart Quad and ATV.
- Compatible with CB400SF (NC31/NC39/NC42), CB400SS/CL400, etc. The spring of this shock absorber is adjustable, but the length is not adjustable. XJR400 (4HM/RH02J), SR400/SR500, etc. GSX400 Impulse (GK79A/GK7CA), etc. Zephyr400 (body number: ZR400C). Most 50cc, 75cc, 90cc, 125cc, 150cc, 250cc, 300cc street cars, off-road vehicles, karts, ATVs, motorcycles and quad bikes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Hegeiisy |
| Brand | Hegeiisy |
| Model | ZN57 |
| Package Dimensions | 45.59 x 23.7 x 7.8 cm; 4 kg |
| Item model number | ZN57 |
| Exterior | Aluminium |
| Manufacturer part number | ZN57 |
| Position | Rear |
| Item Weight | 4 kg |

## Product Details

- **Auto part position:** Rear
- **Brand:** Hegeiisy
- **Exterior finish:** Aluminium
- **Style:** Modern
- **Vehicle service type:** Motorcycle

## Images

![340mm/13.4" Rebound Damping Universal 7mm Spring Rear Suspension Air Shock Absorber MTB Motorcycle For BWS 125 Dirt Bike Gokart Quad ATV Nmax Xmax Aerox - Image 1](https://m.media-amazon.com/images/I/31ZggJyzriL.jpg)
![340mm/13.4" Rebound Damping Universal 7mm Spring Rear Suspension Air Shock Absorber MTB Motorcycle For BWS 125 Dirt Bike Gokart Quad ATV Nmax Xmax Aerox - Image 2](https://m.media-amazon.com/images/I/41VGUmwfaYL.jpg)
![340mm/13.4" Rebound Damping Universal 7mm Spring Rear Suspension Air Shock Absorber MTB Motorcycle For BWS 125 Dirt Bike Gokart Quad ATV Nmax Xmax Aerox - Image 3](https://m.media-amazon.com/images/I/41tMHuxlxBL.jpg)
![340mm/13.4" Rebound Damping Universal 7mm Spring Rear Suspension Air Shock Absorber MTB Motorcycle For BWS 125 Dirt Bike Gokart Quad ATV Nmax Xmax Aerox - Image 4](https://m.media-amazon.com/images/I/41xbBgCQjsL.jpg)

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**Shop now:** [https://www.desertcart.nz/products/540342400-340mm-13-4-rebound-damping-universal-7mm-spring-rear-suspension](https://www.desertcart.nz/products/540342400-340mm-13-4-rebound-damping-universal-7mm-spring-rear-suspension)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-09*