The Ohlins BM490 STX 46 Blackline rear shock is built for riders who want a more controlled, composed feel from their BMW R nineT while retaining the bike’s character. It combines Ohlins damping know-how with a classic Blackline finish suited to road and custom-focused builds. This unit is designed to deliver consistent support and clear feedback through the rear suspension.

Ohlins | Made to race, perfected to ride

Ohlins suspension is developed with a focus on damping control and ride consistency. The STX 46 Blackline range is aimed at road-going motorcycles where appearance matters, without compromising the quality of the internals.

Who this shock is for

  • BMW R nineT riders chasing improved stability and comfort on the street
  • Owners building a custom look who still want proper suspension performance
  • Riders who value adjustable tuning rather than a fixed, one-size setup

Shock design & features

This is an oil/gas separated rear mono shock design intended to maintain damping consistency as conditions change. The STX architecture supports controlled movement and traction-focused behaviour, helping the bike stay settled over varied road surfaces.

Tuning controls

  • Compression damping adjustment
  • Rebound damping adjustment
  • Spring preload adjustment

Before you install

Please note fitment limitations listed for this unit: it is not suitable for use with HIGH Akrapovic OE accessory exhaust, and it is not suitable for 2017-on bikes with Euro 4 (canister clearance). Confirm your exact model and configuration before installation.

Serviceability/lifecycle

As with other Ohlins rear shocks, this unit is intended to be maintained over time with periodic servicing to keep damping performance consistent. Regular inspection and service will help preserve ride quality and component life.

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 BM490
Model # S46PR1C1L (B)
Barcode # BM490
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
Spring Rate Standard 160.0 N/mm
Type Code S46PR1C1L (B)
Stroke Metal to Metal (mm) 46.0
Product Family STX 46 Blackline
Notes Not suitable for use with HIGH Acrapovic OE accessory exhaust. Not suitable for 2017- bikes with Euro 4 (Canister clearance).
Fitted Spring 21102-64
Spring Colour Black

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