The Ohlins STX 46 Blackline rear shock for the BMW R nineT is designed to improve chassis control and ride quality while keeping the bike’s classic feel intact. Built as a dedicated rear mono application, it provides a wide, usable tuning range for road riding. The Blackline finish suits factory and custom builds without drawing attention away from the bike.

Ohlins | Made to race, perfected to ride

Ohlins road shocks are developed around consistent damping behaviour and repeatable adjustment. The STX 46 platform is a proven design used across a wide range of street motorcycles, with serviceable internals and support for long-term ownership.

Who this shock is for

  • BMW R nineT riders wanting firmer, more controlled rear support without losing comfort.
  • Owners who carry a passenger or luggage and need practical preload adjustment.
  • Riders who like to fine-tune suspension feel for different roads and tyres.

Shock design & features

This shock uses a monotube layout with a separated gas and oil design for stable damping. It is built as a rear mono shock and is supplied with a black spring and matching Blackline body finish.

Tuning controls

  • Rebound damping adjustment to control how quickly the rear returns after a bump.
  • Compression damping adjustment to manage support and impact harshness.
  • Spring preload adjustment to set ride height and suit load changes.

Before you install

  • Confirm fitment for your exact BMW R nineT model and year, especially if replacing an earlier BM-series shock.
  • Set sag and preload first, then use compression and rebound adjustments to refine comfort and control.
  • If you are changing tyres or carrying extra load, revisit setup to keep the chassis balanced.

Serviceability/lifecycle

This Ohlins unit is fully serviceable, allowing oil and wear parts to be refreshed as needed. Routine servicing helps maintain consistent damping performance and extends component life, particularly if the bike is used regularly on rough roads.

SKU BM500
Model # S46PR1C1LB (B)
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) 368.0 +7/-5
Spring Rate Standard 160.0 N/mm
Type Code S46PR1C1LB (B)
Stroke Metal to Metal (mm) 46.5
Product Family STX 46 Blackline
Notes *Replaces BM 490*
Fitted Spring: 21102-64
Spring Colour Black

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