The Ohlins YA431 is an STX 36 twin rear shock solution for the Yamaha N-Max, built to improve control and consistency in everyday street riding. It uses a gas-charged, oil/gas separated layout to maintain stable damping behaviour as conditions change. The design focuses on predictable chassis support and clear tuning response without adding complexity.

Ohlins | Made to race, perfected to ride

Ohlins suspension development is driven by repeatable damping behaviour and serviceable construction. This unit is designed to deliver a controlled, confidence-building ride on a scooter platform where stability and traction matter.

Who this shock is for

  • Yamaha N-Max riders wanting more planted feel over bumps and uneven surfaces
  • Commuters and weekend riders chasing more consistent support under braking and acceleration
  • Owners who value tunability and long-term serviceability

Shock design & features

  • STX 36 twin rear shock configuration for rear fitment
  • Gas-charged, oil/gas separated damping design to help maintain consistent performance
  • Built for rebuildability as part of normal suspension lifecycle maintenance

Tuning controls

  • Rebound damping adjustment to balance comfort, grip and chassis control
  • Compression damping adjustment to manage support through bumps and load transfer
  • Spring preload adjustment to suit rider weight and load

Before you install

  • Confirm fitment for Yamaha N-Max and that you are replacing a rear twin shock setup
  • Set sag and preload first, then fine-tune rebound and compression damping
  • Keep notes of changes so you can return to a known baseline if needed

Serviceability/lifecycle

Like all performance shocks, this Ohlins unit is designed to be serviced. Regular inspection and periodic oil/seal refresh helps keep damping consistent and protects internal components over time.

SKU YA431
Model # S36PR1C1
Barcode # YA431
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) 322.5
Spring Rate Standard 14.0 - 21.0 N/mm Progressive
Spring Rate TBA
Type Code S36PR1C1
Stroke Metal to Metal (mm) 81.5
Product Family STX 36 Twin
Notes Alt. spring 60360-04 supplied in box
Fitted Spring 60360-03
Spring Colour Yellow

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