The Ohlins BM678 TTX 36/TTX 39 Adventure rear shock is developed for the BMW R 1200 GS Adventure, targeting consistent control and comfort across mixed surfaces. Built around Ohlins TTX technology, it is designed to maintain damping stability when conditions, loads and pace change. This unit suits riders who want a serviceable, tuneable rear suspension solution for touring and adventure use.

Ohlins | Made to race, perfected to ride

Ohlins suspension is engineered with a focus on damping consistency, traction and rider feedback. The TTX platform is widely used across performance road and off-road applications where stable behaviour matters over long distances. BM678 is part of the TTX 36/TTX 39 Adventure family for the R 1200 GS Adventure.

Who this shock is for

Suited to BMW R 1200 GS Adventure riders who regularly vary load (luggage and/or pillion) and ride over uneven bitumen, gravel and rougher terrain. It is aimed at riders who want external adjustability for setting the bike up to suit conditions rather than relying on a one-size compromise.

Shock design & features

This is a rear mono shock using an oil/gas separated design. The TTX architecture is intended to deliver predictable damping behaviour through repeated high-frequency movement, helping the rear wheel track the ground more consistently. The unit is built to be maintained and serviced over its lifecycle.

Tuning controls

This shock includes external damping adjustment for compression and rebound, along with spring preload adjustment. These controls let you balance comfort, traction and chassis stability as terrain and load change, without needing to disassemble the unit.

Before you install

Notes for this model: an ESA version can trigger a warning light on the display; this does not affect the bike’s performance. Confirm fitment for your exact BMW R 1200 GS Adventure variant and ensure the supplied spring (01103-54) suits your rider weight and typical load.

Serviceability/lifecycle

Ohlins shocks are designed to be serviced to restore performance as oil condition and seals wear with use. Regular maintenance helps keep damping consistent and protects internal components, particularly for adventure touring where heat, dust and sustained movement are common.