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.

Öhlins Motorcycle Suspension Warranty

New Öhlins motorcycle shock absorbers, front forks and cartridge kits supplied by Teknik Motorsport are covered by the applicable Öhlins manufacturer’s warranty against defects in materials and workmanship.

Teknik Motorsport is an authorised Öhlins Service Centre and administers warranty claims in accordance with the Öhlins warranty conditions. The service intervals below form part of the maintenance requirements for Öhlins products supplied and supported by Teknik Motorsport.

This warranty is in addition to the consumer guarantees that apply under the Australian Consumer Law.

  • Registered motorcycles — non-competition road use Five years, subject to correct application, installation, setup and servicing every: 20,000 km or two years, whichever occurs first.
  • Registered motorcycles — adventure and light off-road use Five years, subject to correct application, spring rate, setup and servicing every: 10,000 km or annually, whichever occurs first.
  • Unregistered or competition motorcycles Two years for eligible Öhlins MX and Enduro products, subject to inspection every ten hours and servicing every: 30 operating hours or annually, whichever occurs first.

Compliance with the applicable service interval is a condition of the Öhlins manufacturer’s warranty. Evidence of servicing may be required when a warranty claim is assessed.

A seal leak, loss of damping performance or internal wear arising after the prescribed service interval has been exceeded will be treated as a service or maintenance issue rather than a manufacturing defect.

Warranty repairs

Öhlins suspension products are designed to be serviced and repaired. Where a warranty claim is approved, the normal remedy is repair of the customer’s original suspension unit using genuine Öhlins replacement parts.

Replacement of a complete shock absorber, fork or cartridge kit is not automatic and would normally occur only where the product has suffered a manufacturing failure that cannot reasonably be repaired. This is at Ohlins discretion. 

Öhlins spare parts and service kits

Öhlins spare parts, seals, bushes, service kits, springs, fluids and individual components are covered only against defects present when supplied.

No fixed age-based warranty applies to wear items, service parts or consumable components. Wear, deterioration, contamination, incorrect installation and damage caused by another component are not manufacturing defects.

Öhlins gives the customer a meaningful five-year warranty on products (Units), provided the suspension is maintained as suspension should be maintained. Teknik supports that warranty locally, can inspect the product properly, and can repair it with genuine parts rather than discarding it.

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-

More From This Category