The Ohlins YA239 STX 36 Supersport rear shock absorber is built for Yamaha R15 applications where consistent damping control and clear chassis feedback matter. Developed from Ohlins racing know-how, it is intended to support stable handling under acceleration, cornering and braking. This is a gas-pressurised, oil/gas separated design to help maintain damping consistency during demanding use.

Ohlins | Made to race, perfected to ride

As part of the STX 36 Supersport family, this unit focuses on predictable grip and feel with a performance-oriented internal layout. It is designed as a direct-fit rear mono shock for the R15 platform and replaces YA229.

Who this shock is for

  • Riders wanting improved rear-end control and feedback for sporty street riding
  • Track-day riders looking for more consistent damping feel through longer sessions
  • Owners chasing a tuning-capable upgrade over a standard rear shock

Shock design & features

  • STX 36 Supersport architecture for focused performance and response
  • Gas-pressurised damping system with oil/gas separation to support consistency
  • Designed to enhance traction and stability, particularly when load transfers quickly

Tuning controls

  • Rebound damping adjustment
  • Compression damping adjustment

Before you install

  • Confirm fitment for Yamaha R15 and note this unit replaces YA229
  • Set sag and verify spring preload suits rider weight and intended use
  • After installation, re-check fasteners and clearances through full suspension travel

Serviceability/lifecycle

Like other Ohlins performance shocks, this unit is intended to be maintained with periodic servicing to keep damping performance consistent. Routine inspection and timely oil and wear-part replacement will help preserve ride quality and control over time.

SKU YA239
Model # S36HR1C1L
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) 265.0
Spring Rate Standard 100.0 N/mm
Type Code S36HR1C1L
Stroke Metal to Metal (mm) 50.0
Product Family STX 36 Supersport
Notes Replaces YA 229
Fitted Spring: 66514-100
Rec. Ohlins Oil 01309-

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