The Ohlins YA639 TTX RT rear shock is built for the Yamaha YZF R6, with a focus on control, feel and repeatable damping behaviour. Its twin-tube TTX layout is designed to keep damping forces consistent as conditions change. This unit is oil and gas separated to help maintain stable performance during sustained hard use.

Ohlins | Made to race, perfected to ride

Developed from Ohlins racing suspension architecture, the TTX RT platform targets traction and chassis stability when you are pushing the pace. It is intended for riders who want clearer feedback and a wider, more usable tuning range from the rear of the bike.

Shock design & features

  • Twin-tube TTX construction for controlled, consistent damping behaviour
  • Oil/gas separated design to support stability during long, demanding sessions
  • Rear mono shock configuration for the Yamaha YZF R6 application

Tuning controls

  • Rebound damping adjustment
  • Compression damping adjustment
  • Hydraulic spring preload adjustment

Base setup (factory preset)

This shock is supplied with an Ohlins baseline setting intended as a safe starting point. From there, use the adjusters to balance grip, support and recovery speed to suit your tyres, riding style and track surface.

Before you install

  • Confirm the shock suits your Yamaha YZF R6 model and year before fitting
  • Set sag and preload first, then fine-tune compression and rebound
  • If your riding weight or use-case differs from standard, consider checking spring suitability before setup work

Serviceability/lifecycle

As a rebuildable Ohlins unit, routine servicing helps keep damping consistency and adjustment range where it should be. Service intervals depend on use intensity and environmental conditions.

SKU YA639
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) 294.0 +4/-2
Spring Rate Standard 95.0 N/mm
Type Code T36PR1C1LS
Stroke Metal to Metal (mm) 60.0
Product Family TTX RT
Fitted Spring: 21040-31

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