The Ohlins BM508 rear shock is built for the BMW R 1200 GS with a focus on controlled damping and consistent ride feel across mixed surfaces. Designed for adventure and touring use, it supports stability when conditions change from smooth roads to rough tracks. The STX 46 architecture is aimed at maintaining composure and traction without compromising day-long comfort.

Ohlins | Made to race, perfected to ride

Ohlins suspension is developed with a racing engineering mindset and adapted for real-world riding. The goal is predictable response, clear feedback and dependable performance across a wide range of environments typical of an adventure bike.

Who this shock is for

  • BMW R 1200 GS riders who want improved control and comfort for adventure and touring use
  • Riders regularly encountering corrugations, rocky sections and uneven terrain
  • Those looking for stable behaviour when carrying luggage or a pillion

Shock design & features

This is an STX 46 rear mono shock. It uses an oil/gas separated design for more consistent damping control during demanding use. The assembly is intended to handle harsh conditions while keeping the rear end settled and planted.

Tuning controls

The BM508 includes external adjusters to tailor the damping behaviour to your riding conditions. It provides rebound damping adjustment, compression damping adjustment, and a remote hydraulic preload adjuster to help compensate for changes in load and ride height feel.

Before you install

  • Confirm fitment for BMW R 1200 GS and your model year before installation
  • Set sag and preload for your typical load (solo, luggage, or pillion) before fine-tuning damping
  • If your bike has been lowered/raised or heavily modified, check clearances and travel limits

Serviceability/lifecycle

This Ohlins unit is designed to be serviceable, with routine maintenance helping preserve damping consistency over time. Keeping the shock clean and addressing leaks or performance changes early will help extend service life.

SKU BM508
Model # S46DR1S
Barcode # BM508
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) Rear Mono
Shock Length Eye to Eye (mm) 395.0
Spring Rate Standard 140.0 N/mm
Type Code S46DR1S
Stroke Metal to Metal (mm) 70.5
Product Family STX 46 Adventure
Notes Rear short
Fitted Spring: 00698-54
Spring Colour Yellow

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