The Ohlins TR851 is a rear STX 46 shock absorber developed for the Triumph Sprint ST, aimed at improving control and consistency over a wide range of road conditions. It uses a monotube layout with a separated gas chamber to keep damping stable as temperatures and loads change. Adjustment is provided for rebound damping and compression damping, with hydraulic spring preload to suit varying rider, luggage and pillion loads.

Ohlins | Made to race, perfected to ride

Ohlins suspension is designed around predictable damping behaviour, with a focus on control, feel and serviceability. The STX platform is intended for real-world riding where surface quality and load can vary ride to ride.

Who this shock is for

Riders using the Sprint ST for sport-touring and longer days who want a more controlled rear end through changing surfaces and conditions. It also suits those who regularly change load (solo to luggage and/or pillion) and want an easier way to reset balance without compromising damping quality.

Shock design & features

• Monotube STX architecture with oil/gas separation for consistent damping.
• External reservoir design to support stable performance in demanding use.
• Built as a serviceable unit, intended to be maintained rather than treated as disposable.

Tuning controls

• Rebound damping adjustment for rear wheel control after bumps and during weight transfer.
• Compression damping adjustment to manage support and impact absorption.
• Hydraulic spring preload adjustment to set ride height and balance for different loads.

Before you install

• Confirm the shock is matched to your exact Triumph Sprint ST model and year before fitting.
• Set sag and preload first, then fine-tune rebound and compression to suit your tyres, load and typical roads.
• After installation, re-check fastener torque and clearances through full suspension travel.

Serviceability/lifecycle

This Ohlins unit is designed to be serviced with periodic oil and seal replacement to keep damping consistent over time. Regular maintenance intervals depend on use conditions, especially if the bike sees frequent rough-road touring.