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.

Öhlins Motorcycle Suspension Warranty

New Öhlins motorcycle shock absorbers, front forks and cartridge kits supplied by Teknik Motorsport are covered by the applicable Öhlins manufacturer’s warranty against defects in materials and workmanship.

Teknik Motorsport is an authorised Öhlins Service Centre and administers warranty claims in accordance with the Öhlins warranty conditions. The service intervals below form part of the maintenance requirements for Öhlins products supplied and supported by Teknik Motorsport.

This warranty is in addition to the consumer guarantees that apply under the Australian Consumer Law.

  • Registered motorcycles — non-competition road use Five years, subject to correct application, installation, setup and servicing every: 20,000 km or two years, whichever occurs first.
  • Registered motorcycles — adventure and light off-road use Five years, subject to correct application, spring rate, setup and servicing every: 10,000 km or annually, whichever occurs first.
  • Unregistered or competition motorcycles Two years for eligible Öhlins MX and Enduro products, subject to inspection every ten hours and servicing every: 30 operating hours or annually, whichever occurs first.

Compliance with the applicable service interval is a condition of the Öhlins manufacturer’s warranty. Evidence of servicing may be required when a warranty claim is assessed.

A seal leak, loss of damping performance or internal wear arising after the prescribed service interval has been exceeded will be treated as a service or maintenance issue rather than a manufacturing defect.

Warranty repairs

Öhlins suspension products are designed to be serviced and repaired. Where a warranty claim is approved, the normal remedy is repair of the customer’s original suspension unit using genuine Öhlins replacement parts.

Replacement of a complete shock absorber, fork or cartridge kit is not automatic and would normally occur only where the product has suffered a manufacturing failure that cannot reasonably be repaired. This is at Ohlins discretion. 

Öhlins spare parts and service kits

Öhlins spare parts, seals, bushes, service kits, springs, fluids and individual components are covered only against defects present when supplied.

No fixed age-based warranty applies to wear items, service parts or consumable components. Wear, deterioration, contamination, incorrect installation and damage caused by another component are not manufacturing defects.

Öhlins gives the customer a meaningful five-year warranty on products (Units), provided the suspension is maintained as suspension should be maintained. Teknik supports that warranty locally, can inspect the product properly, and can repair it with genuine parts rather than discarding it.

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-

More From This Category