K-Tech DDS Pro rear shock absorber for Aprilia RSV4 RR RF 1100 Factory 2017–2025
02 · Data & docs

The facts.

Technical data
BrandK-Tech
ModelDDS Pro
Part number255-017-010-020
FitmentAprilia RSV4 1000 RF (2017–2019), RSV4 1000 RR (2017–2020), RSV4 1100 (2021–2024), RSV4 1100 Factory (2019–2024)
Spring series55–155
Length315 mm
Stroke62 mm
RCU body diameter35 mm
RCU shaft diameter12 mm
Country of manufactureUnited Kingdom
DescriptionThe whole story

Engineered for riders who demand total confidence lap after lap, the K-Tech DDS Pro rear shock absorber delivers a level of chassis control and ride comfort that transforms the Aprilia RSV4 experience — whether you are navigating a long race stint or committing fully to a track day. Developed and continuously refined through competition in the British Superbike Championship and the Isle of Man TT, this unit brings proven professional-level suspension to the road and circuit alike.

Key Features

  • Five-way adjustability — compression, rebound, ByPass Valve (BPV), hydraulic preload and length — provides a genuinely all-day, perfectly dialled-in ride quality for every rider weight and road surface
  • 32-click compression damping adjustment for precise, repeatable tuning of mid-stroke and high-speed feel
  • 32-click rebound damping adjustment for optimal traction and wheel control under hard acceleration
  • 16-click BPV (ByPass Valve) adjustment fine-tunes low-shaft-speed damping, improving tyre feedback and grip off slow corners
  • Hydraulic preload adjustment allows rapid, tool-free ride-height changes between sessions or pillion/solo configurations
  • Length adjustment to optimise chassis geometry for individual track layouts or preferred riding style
  • CNC-machined components throughout for maximum rigidity and long-term durability
  • DDS (Dual Damping System) technology with integrated potentiometer mounting points for data logging
  • Wide choice of spring rates (55–155 series) for precise matching to rider weight and use case

Race-Proven British Engineering

Every K-Tech DDS Pro unit is designed and hand-assembled in Great Britain using advanced CAD/CAE software and the highest-specification aerospace-grade materials. The DDS platform has been battle-tested at the highest levels of professional motorcycle racing, making it one of the most trusted aftermarket shock absorbers available for Superbike-class machines. Unlike mass-produced OEM replacements, each unit is built to tolerances that translate directly into more predictable handling, reduced rider fatigue and improved lap times.

The ByPass Valve Advantage

The BPV system is the defining feature that separates the DDS Pro from conventional shock absorbers. By independently controlling the damping force at low shaft speeds — precisely where small surface irregularities are absorbed and tyre contact patch pressure is determined — the BPV dramatically improves feedback through the seat and footpegs. The result is a shock that feels compliant and communicative on fractured road surfaces while remaining firmly controlled under hard cornering loads.

Fitment and Compatibility

This unit (part number 255-017-010-020) is a direct fitment for the following Aprilia RSV4 variants:

  • RSV4 1000 RF (2017–2019)
  • RSV4 1000 RR (2017–2020)
  • RSV4 1100 (2021–2024)
  • RSV4 1100 Factory (2019–2024)

Installation note: K-Tech recommends fitment by an authorised K-Tech Service Centre. Correct installation requires specialist tools and techniques to ensure maximum safety and optimum performance.

Specifications

Specification Value
Spring series 55–155
Length 315 mm
SKU tolerance -0 / +6 mm
Stroke 62 mm
Force 85 N
Force (bar) 5.00
Upper mount Eye | width 23 mm | bolt diameter 10 mm
Lower mount Eye | width 36 mm | bolt diameter 10 mm
Recommended compression clicks 12
Recommended rebound clicks 18
Recommended preload 12 mm
Recommended BPV clicks 8
RCU adjustment range 5 mm
RCU body diameter 35 mm
RCU shaft diameter 12 mm
Part number 255-017-010-020
FitmentWhich bikes this fits
  • Aprilia RSV4/RR/RF/1100 Factory (2017–2025)
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