The Ohlins AP363 TTX GP rear shock absorber is developed for Aprilia RSV4 1000 and RSV4 1000 RR fitment, with a focus on stable damping control and clear chassis feedback. It uses a gas-pressurised design to help maintain damping consistency during sustained hard use. The layout separates compression and rebound functions to support precise tuning for grip and stability.

Ohlins | Made to race, perfected to ride

TTX GP units are built around consistent damping behaviour and repeatable adjustment response. The intent is to give the rider a predictable rear contact patch and composed attitude through corner entry, mid-corner support and drive.

Design architecture

This rear mono shock uses a twin-tube TTX architecture with oil and gas separated via a pressurised system, rather than an emulsion layout. Separating oil and gas is aimed at reducing aeration and maintaining more stable damping characteristics across a session.

Adjustments & what they change

This unit provides external compression and rebound damping adjustment. Compression adjustment primarily influences support under load inputs such as braking, roll and acceleration, while rebound adjustment governs how quickly the rear returns after being compressed, affecting stability, grip and how the bike settles between corners.

Suitability & limits

Designed for riders seeking track-focused damping control on the specified RSV4 models. It is suited to situations where consistent performance and clear adjustment response matter; correct spring selection and setup remain critical to achieving the intended balance.

Serviceability & lifecycle

As a high-performance shock, periodic servicing is part of maintaining damping consistency and seal reliability. Service intervals should be planned around usage intensity and environment, and the shock should be inspected if performance changes or leakage is observed.

Setup considerations

Baseline setup should prioritise correct sag, then damping adjustments can be used to refine support and traction. Make one change at a time and assess tyre behaviour and chassis attitude, as compression and rebound changes interact with spring choice and geometry.