The Ohlins BM505 rear shock is built for BMW R 1200 ST riders who want controlled, consistent suspension behaviour across mixed road conditions. Based on Ohlins STX architecture, it focuses on predictable damping and stable chassis support when the pace or load changes. It is supplied as a rear mono shock replacement suited to adventure-touring use.

Ohlins | Made to race, perfected to ride

Ohlins suspension is developed with a focus on damping control, traction, and repeatability. This unit is designed to deliver a composed feel and improved wheel control over changing surfaces without compromising long-distance comfort.

Who this shock is for

• BMW R 1200 ST owners looking for a more controlled rear end for touring and rougher road conditions
• Riders who value stability when carrying luggage or a pillion
• Anyone wanting a quality rebuildable rear shock as a long-term serviceable solution

Shock design & features

This is an Ohlins STX 46 rear mono shock with oil/gas separated internal design to help keep damping consistent during extended use. The construction is intended for durability and stable performance across varied conditions.

Tuning controls

Adjustment is provided for rebound damping and spring preload, allowing you to tailor chassis attitude and rear wheel control to your load and riding conditions. These controls are intended to make it straightforward to refine feel after installation.

Before you install

• Confirm fitment for BMW R 1200 ST and check general condition of linkage/bushings before installation
• Set static and rider sag with the fitted spring and preload adjustment before changing damping
• After initial rides, re-check fasteners and fine-tune rebound to suit your tyre choice and typical load

Serviceability/lifecycle

Like other Ohlins units, this shock is designed to be serviced to maintain performance over time. Periodic oil and seal refresh helps keep damping behaviour consistent, particularly with frequent long-distance or rough-road use.