The Ohlins BM640 STX 46 Street rear shock is built to improve control and consistency for BMW R nineT Scrambler and R nineT Urban G/S riders on the road. It uses a gas-pressurised damping system to maintain stable behaviour as conditions change. The design provides clear feedback and supports confident chassis balance through braking and cornering.

Ohlins | Made to race, perfected to ride

Developed from Ohlins suspension engineering, the STX 46 Street platform is intended for real-world road use where grip, comfort and stability need to work together. This unit is configured for rear mono-shock fitment on the listed BMW models.

Shock design & features

  • Gas-pressurised damping system for consistent operation
  • STX 46 Street rear mono-shock configuration
  • Separate damping circuits for compression and rebound

Tuning controls

This shock provides external adjustment for both compression and rebound damping, allowing you to tailor support and response to your riding style and typical road conditions. Independent circuits make it easier to adjust one behaviour without heavily influencing the other.

Is it right for you?

Choose this option if you want a street-focused rear shock that can be tuned for ride quality, stability and feel. It suits riders who value adjustment range for different loads or road surfaces while keeping a controlled, predictable chassis.

Before you install

Fitment is specified for BMW R nineT Scrambler and BMW R nineT Urban G/S in the rear mono position. Note: it does not fit model year 2021.

Serviceability/lifecycle

Like all performance suspension, regular servicing helps maintain damping consistency and seal life. Using the recommended Ohlins shock oil supports correct function during service intervals.

SKU BM640
Model # S46DR1LB
Barcode # BM640
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) 374.0 +10/-0
Spring Rate Standard 140.0 N/mm
Type Code S46DR1LB
Stroke Metal to Metal (mm) 52.0
Product Family STX 46 Street
Notes *Does not fit M.Y. 2021*
Fitted Spring: 21102-54
Spring Colour Yellow
Rec. Ohlins Oil 01309-

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