The Ohlins BM146 TTX 36/TTX 39 Adventure rear shock is built for BMW R 1200 GS K50 and R 1250 GS models used in adventure and touring conditions. It is designed to deliver consistent damping control across mixed surfaces and changing loads. This unit is configured as a gas-separated design to help maintain damping stability over long rides.

Ohlins | Made to race, perfected to ride

Ohlins Adventure shocks are engineered to balance support, comfort and control for real-world riding. The focus is predictable chassis behaviour and repeatable adjustment, whether you are commuting, touring, or riding unsealed roads.

Who this shock is for

  • BMW GS riders wanting more controlled damping for adventure and touring use
  • Riders carrying luggage or a pillion and needing added support and stability
  • Owners who want external adjustability for changing road and load conditions

Shock design & features

  • Rear mono shock for BMW R 1200 GS (K50) and R 1250 GS fitment
  • Gas-separated architecture for more consistent performance under sustained use
  • Adventure-focused construction intended for rough surfaces and long-distance riding

Tuning controls

  • Rebound damping adjustment
  • Compression damping adjustment
  • Hydraulic preload adjustment

Before you install

  • Confirm model and year compatibility for BMW R 1200 GS K50 and R 1250 GS, and note this unit is listed for rear fitment (water cooled)
  • Check spring part number supplied: 01103-54 (yellow)
  • After installation, set sag and then fine-tune damping to suit your load and riding conditions

Serviceability/lifecycle

This Ohlins unit is serviceable and intended to be maintained so performance remains consistent over time. Regular inspection and periodic servicing are recommended, particularly if the bike is used in dusty, wet, or heavily loaded conditions.

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 BM146
Model # T39PR1C1S
Barcode # BM146
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) 402.5
Spring Rate Standard 140.0 N/mm
Type Code T39PR1C1S
Stroke Metal to Metal (mm) 75.0
Product Family TTX 36/TTX 39 Adventure
Notes Rear Water cooled
Fitted Spring 01103-54
Spring Colour Yellow
Rec. Ohlins Oil 01309-

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