The Ohlins YA931 TTX RT is a rear shock absorber developed for the Yamaha YZF R1, built around Ohlins’ race-derived TTX architecture. It’s designed to deliver consistent damping behaviour and clear feedback as pace increases. This unit is a gas-pressurised, oil/gas separated design intended for stable performance over demanding road and track use.

Ohlins | Made to race, perfected to ride

TTX RT shocks bring Ohlins’ twin-tube damping concept into a fitment-specific rear mono-shock package. The aim is controlled chassis movement with predictable grip, especially when the bike is being loaded and unloaded quickly through braking, turn-in and drive.

Who this shock is for

  • YZF R1 riders looking for a higher level of damping control and consistency than a standard rear unit.
  • Track-day and performance road riders who want suspension that responds cleanly to setup changes.
  • Owners who prefer a purpose-built, fitment-specific rear shock rather than a universal solution.

Shock design & features

  • TTX twin-tube damping layout for controlled oil flow and consistent response.
  • Gas-pressurised, oil/gas separated construction to support stable damping under hard use.
  • Designed as a rear mono-shock application for the Yamaha YZF R1.

Tuning controls

This shock includes external compression and rebound damping adjustments, allowing you to tune support and feel to suit your tyres, riding conditions and preferred balance.

Base setup (factory preset)

The YA931 is supplied with a factory baseline setting intended as a starting point. From there, adjust rebound and compression methodically to match your riding style and the bike’s overall chassis balance.

Before you install

Fitment is intended for Yamaha YZF R1 rear mounting. After installation, confirm sag and overall balance with the front end, then test changes one at a time to keep the setup process clear and repeatable.

SKU YA931
Model # T36PR1C1LS
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) 297.0 +4-2
Spring Rate Standard 90.0 N/mm
Type Code T36PR1C1LS
Stroke Metal to Metal (mm) 60.0
Product Family TTX RT
Notes Type T36PR1C1LS
Fitted Spring: 21040-29

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