The Ohlins BM445 STX 46 Street rear shock is built for BMW K 1200 R, K 1200 R Sport and K 1200 S riders who want a more controlled, composed ride on the road. Based on Ohlins street-focused STX architecture, it is designed to deliver consistent damping feel and clear chassis feedback. This unit is a rear mono shock suited to riders who value stability, traction and tuneability.

Ohlins | Made to race, perfected to ride

Ohlins brings race-developed damping knowledge into a street application with practical adjustment and durable construction. The STX 46 Street family is aimed at improving control and confidence without sacrificing everyday ride quality.

Who this shock is for

Ideal for riders using their K 1200 on spirited road rides, commuting, or regular weekend runs where consistency and stability matter. It suits anyone looking to refine rear-end support and tyre contact through corners and under braking, while keeping the bike predictable over varying road surfaces.

Shock design & features

This is an oil/gas separated design, using a pressurised system to help maintain stable damping behaviour through longer rides. The STX 46 Street construction is intended to provide strong control with smooth response, supporting better chassis balance for street conditions.

Tuning controls

The BM445 provides rebound damping adjustment, allowing you to tailor how quickly the rear recovers after bumps and weight transfer. This helps you fine-tune stability, grip and overall ride feel to match your load, tyres and riding pace.

Before you install

Confirm fitment for your exact model and year within the BMW K 1200 R, K 1200 R Sport and K 1200 S range. After installation, set sag correctly and then adjust rebound in small steps to suit your roads and riding style. If you ride with a passenger or luggage, re-check your settings to keep the chassis balanced.

Serviceability/lifecycle

As an Ohlins unit, the shock is designed to be serviceable, with periodic maintenance helping maintain damping consistency over time. Regular inspection and scheduled servicing are recommended, especially if the bike is used year-round or on rougher roads.

SKU BM445
Model # S46DR1
Barcode # BM445
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) 323.5
Spring Rate Standard 130.0 N/mm
Type Code S46DR1
Stroke Metal to Metal (mm) 54.5
Product Family STX 46 Street
Notes Front
Fitted Spring: 01093-49
Spring Colour Yellow
Rec. Ohlins Oil 01309-

More From This Category