K-Tech TRDS-R Closed Cartridge Kit – Aprilia RSV4 / R / RR (2011–2018) – 160-011-010-020

Born from the pitlane of the British Superbike Championship and proven at the Isle of Man TT, the K-Tech TRDS-R Closed Cartridge Kit brings genuine race-department suspension engineering to the Aprilia RSV4 platform. The Through-Rod Damper System design is a statement of intent: a purposeful, compact cartridge that replaces the standard fork internals with a precision-machined unit engineered for riders who demand repeatable, data-backed performance lap after lap.

Key Features

• Through-Rod Damper System (TRDS-R) technology for precise, independently adjustable compression and rebound damping — 36 clicks each
• 18 mm preload adjustment range allows rapid, tool-free spring rate optimisation to suit rider weight, tyre choice and circuit characteristics
• Compact closed-cartridge architecture promotes superior heat dissipation, keeping oil temperature stable even under sustained race-pace braking and high-speed compression cycles
• Supplied with springs, so the kit is ready to set up straight from the box without the need to source matched-rate spring pairs separately
• Delivers real-time feedback through the Through-Rod design, giving a technical team the confidence to make meaningful suspension changes between sessions
• Optimised for high-level competition — pedigreed in British Superbike and the Isle of Man TT where consistency under extreme conditions is non-negotiable

Design, Finish and Heritage

K-Tech has built its reputation over decades supplying suspension components to professional race teams, and the TRDS-R reflects that lineage in every detail. The closed-cartridge architecture is not simply a performance choice — it is a deliberate engineering statement. By sealing the damping circuit from the fork oil bath, K-Tech ensures that thermal stability and fluid cleanliness are maintained throughout a race distance, not just the first few corners.

The Through-Rod construction itself is the product of K-Tech's in-house research and development, refined across multiple seasons of top-level competition. It is a design that carries genuine provenance: the same fundamental architecture that has guided superbikes through the Mountain Course at the Isle of Man TT and contested race wins in the British Superbike Championship now fits directly into the Aprilia RSV4's front forks.

Performance on Road and Track

The 36-click independent compression adjuster and 36-click independent rebound adjuster provide a remarkably wide tuning window. Whether you are searching for that final tenth of a second at a technical circuit or dialling in a composed, confidence-inspiring ride on a fast road, the TRDS-R gives you the resolution to find it. The suggested baseline settings — 16 clicks compression, 16 clicks rebound, 220 mm oil/air gap — offer a proven starting point that can be refined to suit individual preference.

The 18 mm preload adjustment ensures the fork geometry and ride height relationship can be set precisely, complementing chassis balance and maximising tyre contact through corner entry and exit. Total travel is 125 mm, and the 697 mm cartridge length is dimensioned to suit the RSV4 fork leg without modification.

Installation Note

Installation must be carried out by an authorised K-Tech Service Centre. Specialist tooling and specific assembly techniques are required to ensure correct function and to maintain the safety and performance standards for which this product is designed.

Fitment & Compatibility

This kit is designed and dimensioned specifically for the following models:

• Aprilia RSV4 (2011–2018)
• Aprilia RSV4 R (2011–2018)
• Aprilia RSV4 RF (2011–2018)
• Aprilia RSV4 RR (2011–2018)

Specifications