The Ohlins YA1594 is a rear TTX 44 shock absorber for the Yamaha YZ 450F, built around Ohlins’ twin-tube damping architecture. It’s designed to deliver consistent damping control and clear chassis feedback across changing track conditions. Supplied without a spring, it’s intended to be matched with an appropriate spring from the recommended range.

Ohlins | Made to race, perfected to ride

TTX technology uses a separated oil and gas design with a twin-tube layout to help maintain stable damping behaviour over long motos. The focus is predictable traction, braking support and stability when the pace increases.

Who this shock is for

Riders who want a more controlled, tuneable rear end on an MX bike, and who are prepared to set sag and balance the chassis properly. It suits riders chasing improved feel and consistency rather than a “set and forget” replacement.

Shock design & features

This unit uses Ohlins’ TTX twin-tube system with separated oil and gas, helping resist damping fade and maintain repeatable performance. The layout is aimed at improving wheel contact and stability through braking bumps and corner entry while keeping drive predictable on exit.

Tuning controls

External damping adjustments are provided for both compression and rebound, allowing you to tune support and recovery speed to suit track conditions and riding style. The damping circuits are designed to be adjusted independently for more precise setup changes.

Before you install

  • No spring is supplied; spring selection is required (see the recommended spring series noted for this model).
  • After installation, set sag and verify chassis balance front-to-rear before evaluating clicker changes.
  • Use the recommended Ohlins suspension oil family specified for the unit when servicing.

Serviceability/lifecycle

This shock is fully serviceable. Regular oil and seal service helps keep damping consistent and protects internal components, especially in high-dust or high-hour use.

SKU YA1594
Model # T44PR1C2W
Barcode # YA1594
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
Shock Length Eye to Eye (mm) 458.0
Spring Rate No Spring/s Supplied
Type Code T44PR1C2W
Stroke Metal to Metal (mm) 121.0
Product Family TTX 44
Notes 06310- series spring
Fitted Spring Sold separately, see notes.
Rec. Ohlins Oil 01304-

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