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Oniissy Mountain Bike Rear Shock Review: Tailored damping for downhill riders

Oniissy Mountain Bike Rear Shock 165/190mm Bike Shock Absorber Adjustable Air Pressure,Mountain Bike Rear Shock absorber(165mm Style 1)
4.8
[Adjustable Air Pressure]  Tailor performance with 200–300 psi range for better handling across varied terrains.
[6066 Aluminum Construction]  Seamless 6066 alloy build offers exceptional durability and resistance to harsh conditions.
[Flexible Fit Options]  Two mounting spacings (165mm/190mm) and travel options (35mm/50mm) fit many downhill bikes.
[Air Piston Shock Absorption]  Air piston design optimizes shock absorption for smoother descents on rugged trails.
[E-Bike & Downhill Ready]  Designed to accommodate both downhill mountain bikes and electric downhill bikes reliably.
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A mountain bike rear shock for downhill and electric downhill bikes, designed to deliver adjustable damping and robust construction, the Oniissy Mountain Bike Rear Shock smooths rough trails for greater confidence. Better control on steep descents and technical sections gives riders more enjoyment and fewer surprises. Is this the upgrade that matches a rider's frame and style?

⚡ At a Glance
  • Damping Performance: Adjustable air-piston damping up to a 200-300psi range delivers controlled absorption on rough terrain
  • Best for: Downhill mountain bikers and riders of electric downhill bikes seeking a tougher, tunable rear shock
  • Not ideal for: Cross-country riders or those looking for ultra-lightweight, minimal-travel suspension

Two mounting spacings (165mm and 190mm) with travel choices of 35mm or 50mm suit a range of frames. Constructed from 6066 seamless aluminium alloy with an air piston design for improved longevity and smoother response.


Confident control - thanks to adjustable air pressure

An air piston chamber accepts pressurised air up to a stated maximum of 200-300psi, altering spring rate and damping responsiveness as pressure changes. Higher pressure raises firmness while lower pressure increases compliance.

Riders can firm up suspension for fast, rough sections or soften it for traction on technical trails, allowing a personalised ride feel.

Long-lasting build - with 6066 seamless aluminium alloy

Manufactured from 6066 seamless aluminium alloy, the construction resists common stress points and is intended for resilience in harsh riding conditions. Seamless tubing reduces weld-related weaknesses.

Durability stands up to repeated impacts on demanding descents, helping to extend service life and reduce maintenance frequency.

Flexible fit - thanks to two mounting spacings and travel options

Available with mounting hole spacings of 165mm or 190mm and journey lengths of 35mm or 50mm, matching common downhill and electric downhill frame standards. Multiple options simplify selection for different bike geometries.

Offers straightforward compatibility with a wider range of frames and lets riders choose travel that suits riding style and terrain.

✨ The 4 Key Reasons for Oniissy Mountain Bike Rear Shock
  1. Adjustable air pressure - Fine-tune firmness across terrain using up to 200-300psi
  2. 6066 seamless aluminium - Withstands repeated impacts for longer service life between rebuilds
  3. Dual mounting spacings - Fits 165mm and 190mm frames, increasing compatibility with common standards
  4. Air piston design - Smoothes transitions over rough terrain for controlled descents
📋 Technical Details at a Glance
  • Category: Automotive Parts and Accessories
  • Brand: Oniissy
  • Model: Mountain Bike Rear Shock
  • Product ID: B0DYP6LB7T
  • Mounting hole spacing: 165mm, 190mm
❓ Frequently Asked Questions

Q: Will this shock fit my bike frame with 165mm spacing?

A: Compatibility depends on mounting hole spacing; the product is offered in a 165mm option that matches frames with that spacing.

Q: What air pressure range can be used to tune the shock?

A: Adjustable air pressure can be tailored up to a maximum atmospheric pressure of 200-300psi as stated in the description.

Q: Is the construction durable for regular downhill riding?

A: Construction uses 6066 seamless aluminium alloy and the design is described as resilient, and user reviews cite the shock as a reliable replacement that performs well.

🏆 Our Verdict

Suitable for downhill and electric downhill riders who want a tunable, robust rear suspension. Adjustable air pressure, an air-piston damping system and 6066 seamless aluminium construction combine to deliver tailored control and durability. Delivers strong long-term value through durable materials and adaptable settings for a range of trail conditions.