GZYF 320mm Universal Motorcycle Rear Air Shock Absorbers - Smooth Ride

In this review of the GZYF 320mm rear air shock absorbers the bottom line is simple: these shocks are for riders who need a direct, affordable replacement or an upgrade that improves ride comfort and adjustability. The reviewer found the single biggest reason to buy is the combination of an adjustable nitrogen reservoir and a sturdy steel and aluminum build that help filter bumps and provide a more controlled ride for 150cc to 750cc bikes, ATVs and go karts when the eye to eye distance matches.

Key Features

• 320mm Eye to Eye: The 320mm core length is the main compatibility check and ensures a direct fit when your bike requires that eye to eye distance.
• Aluminum Reservoir Tank: The CNC machined large capacity reservoir improves heat dissipation and helps maintain consistent damping during longer rides.
• Solid Steel and Alloy Construction: Steel body with aluminum components gives a durable feel and resists everyday wear on off-road and street machines.
• Adjustable Spring Preload: The preload can be adjusted with a tool to tune compression and rebound feel for different loads and riding styles.
• Air/Nitrogen Damping: The nitrogen-charged design smooths out minor bumps and absorbs larger impacts for improved control and comfort.
• Wide Fitment Range: Designed to work on most 150cc to 750cc street bikes, scooters, mopeds, go karts and ATVs that use a 320mm eye to eye shock.

Who It's For

The GZYF 320mm shocks suit riders who are replacing worn OEM shocks on dirt bikes, quads or go karts and who can confirm a 320mm eye to eye requirement. They are also a good choice for hobbyists doing style upgrades or basic suspension tuning without needing a high-end race unit.

Those seeking precision race-level damping or an exacting factory match for unconventional mounting hardware should look elsewhere; these shocks rely on the correct eye to eye measurement and basic preload adjustment rather than advanced external adjusters.

Pros & Cons

Pros

• Solid build with steel and aluminum alloy provides reliable durability and a premium look.
• Adjustable nitrogen reservoir and spring preload deliver noticeably smoother ride quality over stock shocks.
• Fits a broad range of 150cc to 750cc bikes, ATVs and go karts when the 320mm eye to eye dimension matches.
• Relatively simple installation and good fit and finish for a replacement unit.

Cons

• Functionality reports are mixed for some users, and stiffness may be softer or firmer than expected depending on bike weight and personal preference.
• Requires accurate eye to eye measurement and possibly a clevis adapter for some frames, adding installation steps.

Specifications

Total Length	350mm (13 3/4in)
Eye to Eye Core Length	320mm (12 5/8in)
Eye Diameter (with bushing)	12mm
Eye Diameter (bushing removed)	16mm
Eye Thickness	21mm
Spring Stiffness	110 kg
Maximum Load	200 kg (440 lbs)

Our Verdict

The GZYF 320mm rear air shocks are a solid value for riders who need a direct 320mm eye to eye replacement and want improved ride comfort and basic adjustability without a large outlay. They deliver durable construction, a useful nitrogen reservoir and sensible preload tuning, making them a practical upgrade for street bikes, ATVs and go karts when fitment is confirmed.

Frequently Asked Questions

Will these shocks fit my bike?
They will fit if your current shocks measure 320mm eye to eye; confirm that dimension before ordering and consider a clevis adapter if your mount differs.

Can I tune rebound and compression?
These shocks offer spring preload adjustment and an adjustable air reservoir for damping feel, but they do not have separate external rebound and compression knobs.

What is the maximum load?
The shocks are rated to a maximum load of about 200 kg (440 lbs) and use a 110 kg spring stiffness as specified.