The Ohlins BM509 STX 46 Adventure front shock is built for BMW R 1200 GS riders who want more control and composure when conditions turn rough. Designed for adventure and touring use, it supports consistent damping performance across changing surfaces and loads. It is a front mono shock supplied as a complete unit with spring fitted.

Ohlins | Made to race, perfected to ride

Ohlins suspension is developed with a focus on damping control, stability and reliability. For adventure bikes, that means predictable feedback on corrugations, broken bitumen and technical tracks, without sacrificing comfort on longer days.

Who this shock is for

  • BMW R 1200 GS owners chasing improved front-end control for mixed touring and off-road riding
  • Riders carrying luggage or changing load often and wanting a more stable, tuneable front setup
  • Anyone replacing a tired original shock with a purpose-built adventure unit

Shock design & features

This is an Ohlins STX 46 Adventure-series mono shock for the front position. It uses an oil/gas separated internal design to help maintain consistent damping behaviour on extended, rough rides. The unit is supplied with a spring installed from the factory.

Tuning controls

External adjustment is provided for rebound damping, allowing you to fine-tune how quickly the shock returns after compressing. Spring preload adjustment is also provided to help suit rider weight and typical load, keeping ride height and balance where you want it.

Before you install

  • Confirm fitment for your exact BMW R 1200 GS model and year, as this listing is for a front mono configuration
  • After installation, set preload first, then refine rebound damping to match your tyres, terrain and load
  • Check clearances and fastener torque as per the motorcycle service manual

Serviceability / lifecycle

Ohlins shocks are designed to be serviceable. Periodic inspection and servicing helps keep damping performance consistent, particularly for adventure riding where dirt, water crossings and corrugations increase wear on seals and oil.

SKU BM509
Model # S46ER1
Barcode # BM509
Brand Ohlins
Shipping Weight 5.0000kg
Shipping Size 0.300 x 0.300 x 0.500m
Type Units
See our Shipping Information See our Frequently Asked Questions
Position (Front or Rear) Front Mono
Shock Length Eye to Eye (mm) 325.0
Spring Rate Standard 52.0 N/mm
Type Code S46ER1
Stroke Metal to Metal (mm) 82.0
Product Family STX 46 Adventure
Notes Front short
Fitted Spring: 01096-10
Spring Colour Yellow

More From This Category