The Ohlins YA343 STX 46 Supersport rear shock is built for riders chasing consistent chassis control and clear feedback from the rear tyre. Developed from Ohlins race-derived architecture, it is designed to maintain predictable damping behaviour through repeated hard use. This unit suits the Yamaha YZF R1 platform with a focus on precise tuning rather than one-size-fits-all feel.

Ohlins | Made to race, perfected to ride

STX 46 Supersport shocks are engineered around a modern monotube design aimed at delivering stable damping response and strong feel at lean. The YA343 is intended for riders who want a purposeful suspension package for track-focused riding and controlled road use.

Who this shock is for

  • Track day riders wanting stronger rear support and clearer grip feedback
  • Riders who regularly adjust setup for different tyres or conditions
  • Owners seeking a dedicated Ohlins rear mono shock solution for the YZF R1

Shock design & features

This is a rear mono shock using Ohlins STX 46 Supersport architecture with oil and gas separated for more consistent damping behaviour during demanding sessions. It is designed to provide stable support under braking and predictable traction as load transfers through the rear end.

Tuning controls

The YA343 provides external adjustment for rebound damping and compression damping, along with a length adjustment to help fine-tune chassis attitude. These controls allow the shock to be matched to rider preference, tyre choice, and track conditions without internal modification.

Before you install

  • Confirm correct fitment for your Yamaha YZF R1 and check clearance through full suspension travel.
  • Set sag and baseline adjustments before fine-tuning damping.
  • Inspect linkages and bearings for wear so the shock can work as intended.

Serviceability/lifecycle

Like all performance suspension, this Ohlins unit is designed to be serviced and re-oiled as part of normal ownership. Periodic servicing helps preserve damping consistency and keeps adjustment changes meaningful over time.

SKU YA343
Model # S46PR1C2LS
Barcode # YA343
Brand Ohlins
Shipping Weight 5.0000kg
Shipping Size 0.300 x 0.300 x 0.500m
Type Units
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If your Motorcycle is listed below, this product will suit:

Position (Front or Rear) Rear Mono
Shock Length Eye to Eye (mm) 300.0 +6/-0
Spring Rate Standard 95.0 N/mm
Type Code S46PR1C2LS
Stroke Metal to Metal (mm) 64.5
Product Family STX 46 Supersport
Fitted Spring 01093-31
Spring Colour Yellow
Rec. Ohlins Oil 01309-

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