The Ohlins BM641 STX 46 Street rear shock is built for BMW R nineT Scrambler and R nineT Urban G/S riders who want more controlled damping and clearer chassis feedback on the road. It is a gas-pressurised mono shock with separated oil and gas to help maintain consistent damping as conditions change. Designed as a bolt-on replacement, it focuses on predictable support and tunability rather than harshness.

Ohlins | Made to race, perfected to ride

Ohlins road products draw on proven internal designs and damping principles developed through competition and refined for everyday use. The STX 46 Street platform is aimed at improving stability, traction and rider confidence across real-world surfaces.

Who this shock is for

Suited to riders who use their R nineT on the street and want a more composed rear end during braking, corner entry and acceleration. It is also a good match if you regularly ride with varying loads and want a shock that can be adjusted to suit.

Shock design & features

This is a rear mono shock from the Ohlins STX 46 Street family. It uses a gas-pressurised design with separated oil and gas, supporting consistent damping behaviour over a wide range of riding conditions.

Tuning controls

Adjustability includes rebound damping control to fine-tune how the shock extends after compression. Spring preload adjustment is provided to set ride height and balance for rider weight and loading.

Before you install

  • Confirm fitment for your exact model and year; noted as not fitting model year 2021.
  • Inspect linkage and mounting hardware condition before installation.
  • After installation, set sag and verify clearance through full suspension travel.

Serviceability/lifecycle

Like other Ohlins units, this shock is designed to be maintained with periodic servicing to keep damping performance consistent. Regular inspection and oil service help preserve internal components and ride quality over time.

SKU BM641
Model # S46DR1L
Barcode # BM641
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 +12/-0
Spring Rate Standard 140.0 N/mm
Type Code S46DR1L
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-

More From This Category