K-Tech DDS Pro rear shock absorber for BMW S1000RR K46 2015-2018 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandK-Tech
ModelDDS Pro
Part Number255-015-030-020
FitmentBMW S1000RR K46 (2015-2018)
Spring Series55-155
Overall Length352 mm (tolerance -3/+3 mm)
Stroke62 mm
Spring Force95 N / 5.00 bar
Upper MountEye | Width: 30 mm | Bolt diameter: 10 mm
Lower MountEye | Width: 30 mm | Bolt diameter: 10 mm
DescriptionThe whole story

Engineered from CNC-machined aluminium and precision-ground components, the K-Tech DDS Pro shock absorber sets the benchmark for rear suspension on the BMW S1000RR K46. Continuously refined through competition at the British Superbike Championship and the Isle of Man TT, every element of this unit reflects the exacting standards of professional motorsport — translated directly to your machine.

Key Features

  • 5-way adjustability gives you complete command over suspension character, from fast road to full race track use
  • 32-click compression and 32-click rebound damping adjustment allow precise, repeatable setup changes between sessions
  • 16-click ByPass Valve (BPV) setting delivers fine-resolution control of low-speed damping, directly improving tyre feedback and traction
  • Hydraulic spring preload adjustment enables rapid ride-height changes without tools
  • Length adjustment allows geometry optimisation to suit individual track layouts and rider preferences
  • CNC-machined components throughout deliver exceptional structural rigidity and long-term durability
  • DDS technology includes integrated mounting points for a potentiometer, enabling full data-logging capability
  • Wide spring rate selection in the 55-155 series accommodates riders of all weights and riding styles

Race-Proven Construction

The DDS Pro is not a road shock adapted for track use — it was conceived as a competition-grade unit from the outset. The ByPass Valve system, unique to K-Tech's DDS platform, operates independently of the main compression circuit, giving suspension engineers a dedicated tool for tuning low-shaft-velocity behaviour without compromising high-speed damping. The result is a rear end that communicates precisely what the tyre is doing, allowing the rider to carry more corner speed with confidence.

The 35 mm diameter RCU housing and 12 mm shaft are proportioned for stiffness under the lateral loads generated by high-performance road and race tyres. All external adjusters are clearly marked and offer positive, audible click detents — essential when making setup changes in a busy paddock or on the roadside.

Fitment and Compatibility

This shock absorber is specifically designed and validated for the BMW S1000RR K46, covering model years 2015, 2016, 2017 and 2018. Both mounting eyes share identical geometry — 30 mm width and 10 mm bolt diameter — ensuring correct alignment and eliminating the need for adaptors on standard-specification frames.

Installation requires specialist tooling and suspension-specific knowledge. K-Tech recommends fitting by an authorised K-Tech Service Centre to ensure correct setup and maximum safety.

Recommended Base Settings

  • Compression: 8 clicks from fully closed
  • Rebound: 10 clicks from fully closed
  • Preload: 12 mm
  • BPV: 8 clicks from fully closed
  • RCU length adjustment range: 5 mm

Specifications

Specification Value
Part Number 255-015-030-020
Fitment BMW S1000RR K46 (2015-2018)
Spring Series 55-155
Overall Length 352 mm (tolerance -3/+3 mm)
Stroke 62 mm
Spring Force 95 N / 5.00 bar
Upper Mount Eye | Width: 30 mm | Bolt diameter: 10 mm
Lower Mount Eye | Width: 30 mm | Bolt diameter: 10 mm
RCU Housing Diameter 35 mm
RCU Shaft Diameter 12 mm
Compression Adjustment 32 clicks
Rebound Adjustment 32 clicks
BPV Adjustment 16 clicks
Length Adjustment Range 5 mm
FitmentWhich bikes this fits
  • BMW S1000RR K46 (2015–2018)
07 · Support

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08 · Paddock

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