The Ohlins YA603 STX 46 Supersport rear shock is built for the Yamaha SZR 660 to deliver controlled, consistent damping in demanding road and track use. It uses a pressurised, oil/gas-separated design to help reduce fade and maintain stability as conditions change. The STX architecture is designed to give clear feedback and predictable chassis behaviour when you push on.

Ohlins | Made to race, perfected to ride

Developed from Ohlins racing experience, this unit focuses on repeatable damping performance and practical adjustability. It is intended to improve traction and composure without making the bike feel harsh or vague.

Who this shock is for

  • Riders looking for more support and stability from the rear of the Yamaha SZR 660
  • Sport-focused road riding where consistency and feedback matter
  • Track days where heat management and tunability are important

Shock design & features

This is an STX 46 Supersport rear mono shock with an oil/gas-separated, pressurised damping system. The layout is designed to keep damping behaviour stable under repeated hard use and provide a more controlled feel through braking and cornering loads.

Tuning controls

Adjustability includes rebound damping and compression damping, allowing you to balance rear grip, support and ride comfort to suit tyres, riding style and conditions.

Before you install

  • Confirm fitment for Yamaha SZR 660 and inspect linkage/bushings and mounting hardware condition before installation
  • Set sag and baseline damping after installation to suit your weight and use
  • Use the recommended Ohlins suspension oil when servicing

Serviceability/lifecycle

Like all performance suspension, this shock benefits from periodic servicing to keep damping consistent and internal wear controlled, particularly if used in wet conditions or on track.

SKU YA603
Model # S46HR1C1L
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 Mono
Shock Length Eye to Eye (mm) 312.0 +12/-0
Spring Rate Standard 120.0 N/mm
Type Code S46HR1C1L
Stroke Metal to Metal (mm) 55.0
Product Family STX 46 Supersport
Fitted Spring 01093-44
Spring Colour Yellow
Rec. Ohlins Oil 01309-

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