GZYF 400mm Motorcycle Air Shock Absorbers - Smooth, Adjustable Ride

In this review the GZYF Pair 400mm Motorcycle Shocks stand out as a practical, budget-friendly replacement for many dirt bikes and ATVs. They are aimed at riders who need reliable rear suspension with adjustable preload and a large CNC reservoir for better heat dissipation. The single biggest reason to buy is the combination of solid construction and a nitrogen air design that soaks up small bumps while offering a noticeable upgrade in comfort and appearance over many stock shocks.

Key Features

• Eye to Eye Fit: Built to a 400mm eye to eye distance so buyers can match fitment precisely for 150cc to 750cc street bikes, scooters, mopeds and many quads.
• Solid Construction: Constructed from steel and aluminum alloy for greater durability and longer service life under everyday riding conditions.
• Nitrogen Air Reservoir: The rear nitrogen shock helps filter out minor bumps and absorb larger impacts for a smoother, more controlled ride.
• CNC Large Capacity Tank: The aluminum reservoir is CNC machined for improved heat dissipation and consistent damping performance during extended use.
• Adjustable Preload: Spring preload adjusts with a tool so riders can tune compression feel for acceleration and load changes.
• Style Upgrade: A black and gold finish gives a visual upgrade over many stock shocks while remaining functional and unobtrusive.

Who It's For

The GZYF 400mm shocks are best for owners of compatible dirt bikes, sport bikes, scooters or ATVs who want an affordable suspension upgrade that improves small-bump absorption and overall comfort. Riders doing light to moderate off-road or street riding and those modifying their bike for better ride quality will appreciate the construction and adjustability.

These shocks are not aimed at professional racers or riders who need highly tunable, track-level suspension with external adjusters for compression and rebound. Also, fit depends on the eye to eye distance, so anyone with a different measurement should look for a correctly sized alternative.

Pros & Cons

Pros

• Noticeably improves comfort over many stock shocks by absorbing small bumps effectively.
• Durable build using steel and aluminum alloy provides long-term reliability.
• Adjustable spring preload lets riders fine-tune the feel for load and acceleration.
• Attractive black and gold styling adds a visual upgrade to the rear end.

Cons

• Some riders report a much softer ride than stock, which may not suit those wanting firmer handling.
• Fit can vary by model; the eye to eye distance must be checked carefully before purchase.

Specifications

Our Verdict

The GZYF 400mm air shocks are a solid value for riders seeking an easy way to upgrade rear suspension on compatible bikes and ATVs. They deliver improved comfort, durable materials and basic adjustability, making them a good pick for everyday riding and modification projects, provided the 400mm eye to eye measurement matches the bike.

Frequently Asked Questions

Will these shocks fit my bike?
Check the eye to eye distance of 400mm; fit is determined primarily by that measurement and intended 150cc to 750cc platforms.

Can I adjust ride firmness?
Yes, the spring preload is adjustable with a tool so you can increase or decrease compression feel.

Are they durable for regular use?
Yes, the steel and aluminum alloy construction with a CNC reservoir provides improved durability and heat dissipation for regular riding.