The Ohlins HD515 STX 46 Custom & Heritage rear shock absorber is built for Harley-Davidson Softail Fat Bob models where ride control matters but the classic look is non-negotiable. It combines Ohlins damping design with a Custom & Heritage finish to suit vintage-inspired and custom builds. This unit replaces the HD 505.

Ohlins | Made to race, perfected to ride

Developed from Ohlins suspension experience and packaged for cruiser applications, the STX 46 Custom & Heritage range is aimed at improving stability and comfort without changing the character of the bike. It is a rear mono shock application.

Shock design & features

This is an oil/gas separated shock design intended to provide consistent damping performance. The construction and finish are chosen to complement custom cruiser aesthetics while keeping the internals service-focused.

Tuning controls

Adjustment is provided for rebound damping and spring preload, allowing you to set the shock for rider load and desired chassis control. These adjustments are intended to help balance comfort, grip and stability for road use.

Is it right for you?

Choose this shock if you want a dedicated Ohlins rear mono upgrade for a Softail Fat Bob that suits Custom & Heritage styling and gives you practical tuning range. If you need a fitment update from an earlier model, note that it replaces HD 505.

Before you install

  • Confirm motorcycle model and year compatibility for Softail Fat Bob fitment.
  • Plan a baseline setup after installation by setting preload for your typical load, then refine rebound to suit your roads.
  • Retain installation notes for future servicing.

Serviceability/lifecycle

Ohlins shocks are designed to be serviced to maintain performance over time. Periodic inspection and oil servicing will help keep damping consistent as kilometres accumulate.

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 HD515
Model # S46DR1S
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) 341.5
Spring Rate Standard 105.0 N/mm
Type Code S46DR1S
Stroke Metal to Metal (mm) 57.5
Product Family STX 46 Custom & Heritage
Notes Replaces HD 505
Fitted Spring 21103-36
Rec. Ohlins Oil 01309-

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