The Ohlins YA2090 STX 46 MX is a rear mono shock developed for the Yamaha YZ 85, built around Ohlins off-road damping architecture for clear feedback and controlled traction. It is intended to provide consistent performance through changing track conditions and repeated hard impacts. Spring is supplied separately, allowing the final rate to be matched to rider weight and use.

Ohlins | Made to race, perfected to ride

This STX 46 MX unit is designed to deliver a controlled, predictable rear end that supports braking stability and drive out of corners. The focus is on usable adjustment and repeatable damping behaviour suitable for motocross use.

Shock design & features

  • Rear mono shock layout for Yamaha YZ 85 fitment
  • Oil/gas separated damping design for consistency under heat and load
  • Valving developed from Ohlins motocross programs to prioritise traction and chassis control
  • Supplied without spring so the correct rate can be selected during setup

Tuning controls

External damping adjustments include compression and rebound, allowing you to balance support under braking and jump landings with grip and comfort over chop. These controls are intended to make track-to-track changes straightforward without altering internal components.

Before you install

  • Spring is not supplied; select and fit an appropriate spring before use
  • Confirm correct installation orientation and clearances for the YZ 85 chassis
  • Set sag and damping as part of the initial setup to suit rider weight and track conditions

Serviceability/lifecycle

Like all performance motocross shocks, routine servicing helps maintain consistent damping and seal life. Plan periodic oil and wear-part replacement based on hours of use and riding conditions, especially in dusty or high-heat environments.

SKU YA2090
Model # T30PR1C1W
Barcode # YA2090
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

If your Motorcycle is listed below, this product will suit:

Position (Front or Rear) Rear Mono
spring rate No Spring/s Supplied
Type Code T30PR1C1W
Product Family STX 46 MX
Fitted Spring: Sold separately, see notes.
Rec. Ohlins Oil 01304-

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