The Ohlins YA186 STX 36 Twin rear shock is built for Yamaha Aerox/NVX 155 riders chasing more controlled suspension behaviour on the road. It is a twin-shock rear unit developed from Ohlins street and race damper architecture, focusing on consistent damping and clear feedback. This model uses a pressurised design to help maintain damping stability through repeated impacts and heat.

Ohlins | Made to race, perfected to ride

Ohlins dampers are designed around predictable response and mechanical grip, with valving aimed at keeping the tyre loaded without harshness. The result is a rear end that feels more settled during braking, mid-corner, and when driving out.

Who this shock is for

  • Riders who want better rear stability and traction on imperfect streets
  • Owners upgrading a worn or underdamped original rear suspension
  • Riders who value adjustability to suit load, pace, and surface changes

Shock design & features

This is a pressurised, oil/gas separated rear shock design intended to reduce fade and maintain consistent damping. The STX 36 Twin platform is aimed at delivering controlled high-speed response and improved chassis composure under harder riding.

Tuning controls

This shock includes rebound damping adjustment and compression damping adjustment, allowing you to tune how the rear reacts over bumps and how it settles after impacts. Spring preload adjustment is also provided to set ride height and balance for rider weight and typical load.

Before you install

  • Confirm fitment for Yamaha Aerox/NVX 155 and rear twin-shock configuration before installation
  • Set preload for correct ride height first, then refine rebound and compression for control and comfort
  • If your tyres or swingarm bushes are worn, replace them first to get meaningful tuning results

Serviceability/lifecycle

Ohlins shocks are designed to be serviced and reconditioned to maintain damping performance over time. Periodic inspection and servicing helps keep the adjusters effective and the damping consistent.

SKU YA186
Model # S36PR1C1
Brand Ohlins
Shipping Weight 5.0000kg
Shipping Size 0.300 x 0.300 x 0.500m
Type Units
See our Shipping Information See our Frequently Asked Questions
Position (Front or Rear) Rear Twin
Shock Length Eye to Eye (mm) 307.5
Spring Rate Standard 11.0 - 24.0 N/mm Progressive
Type Code S36PR1C1
Stroke Metal to Metal (mm) 79.5
Product Family STX 36 Twin
Fitted Spring 60240-21

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