GZYF 12.6" (320mm) Universal Rear Air Shock Absorbers for Honda — Nitrogen Damped, Adjustable Preload

GZYF 12.6" (320mm) universal rear air shock absorbers deliver adjustable, heavy-duty suspension upgrade for 150–750cc street bikes, scooters, mopeds and small ATVs.

If you’re replacing worn shocks or customizing ride feel, these GZYF rear air shocks combine a CNC-machined aluminum reservoir, steel body, nitrogen damping and adjustable spring preload to smooth bumps and improve control. They’re designed around a 320mm eye-to-eye length (12.6") and suit a wide range of motorcycles when that measurement matches your frame. Built for durability and heat dissipation, the reservoir tank and alloy components help maintain consistent performance under load.

How do these shocks change the way my bike handles?

The shocks reduce transmission of road impacts through a nitrogen-damped piston and an external reservoir that increases oil volume and cooling. You’ll notice fewer small-vibration jolts and improved composure at moderate speeds, plus better response under heavier loads.

• 320mm eye-to-eye fit for many 150–750cc bikes and scooters
• Nitrogen damping for controlled compression and rebound
• CNC aluminum reservoir for larger fluid capacity and heat dissipation

Are these adjustable so I can tune ride comfort?

Yes — the spring preload is adjustable using basic tools so you can tailor sag and firmness to your weight and riding style. That lets you soften for comfort or firm up for carrying a passenger or cargo without buying a different spring.

• Tool-adjustable spring preload for personalized compression feel
• Simple mechanical adjustment, no special equipment required
• Works with damping characteristics to balance ride and control

Will these fit my Honda or other motorcycle models?

Compatibility depends primarily on the eye-to-eye dimension (320mm). If your OEM shock measures 320mm between mounting eyes and bolt sizes are compatible, these should fit many Honda models and other brands. Always verify mounting hardware and clearance before installation.

• Main compatibility check: 320mm eye-to-eye distance
• Fits many 150cc–750cc street bikes, scooters, mopeds and small ATVs
• Confirm bolt diameter and frame clearance before ordering

What are the materials and durability features?

The GZYF shocks use a combination of solid steel for structural strength and aluminum alloy for the reservoir and machined parts. This mix increases longevity while keeping heat transfer efficient so damping remains stable during longer rides.

• Steel body for load-bearing toughness
• CNC-machined aluminum reservoir for corrosion resistance and cooling
• Robust seals and construction designed for road and light off-road use

Who is this for: These GZYF 12.6" (320mm) rear air shock absorbers are for riders who need a direct, adjustable replacement for worn rear shocks or want a performance-oriented upgrade for mid-sized motorcycles, scooters and small ATVs. Choose this if your motorcycle’s eye-to-eye length is 320mm and you want improved heat management, tunable preload and reliable materials for daily commuting, touring or modified builds. Not a fit if your bike requires a different eye-to-eye length or a model-specific mounting arrangement.