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K-Tech TRDS-R Closed Cartridge Kit - Yamaha YZF-R7 (2021-2026) - 160-021-270-015

€2.971,77

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Engineered for the sharp end of the grid, the K-Tech TRDS-R Closed Cartridge Kit transforms the front-end behaviour of the Yamaha YZF-R7 into a precision race tool. Used at the highest levels of competition — from British Superbike to the Isle of Man TT — the TRDS-R brings championship-proven suspension technology to riders and teams working within the latest cost-cap regulations.

Key Features

  • Through-Rod Damping System (TRDS-R) technology delivers exact, repeatable damping adjustment so riders and engineers can dial in chassis behaviour with genuine confidence.
  • The 'R' in TRDS-R stands for Regulation — the kit is designed to comply with the latest championship cost-restriction rules, levelling the playing field without compromising lap-time potential.
  • Lightweight, compact cartridge architecture reduces unsprung mass and improves heat dissipation for consistent damping performance across a full race distance.
  • 16-click compression and 16-click rebound adjustment (recommended baseline settings) allow fine, systematic tuning between sessions.
  • 18 mm preload adjustment range accommodates different spring rates and rider preferences without specialist tooling.
  • Supplied with a matched spring set, ready to build and install out of the box.

Through-Rod Technology on Track

Conventional cartridge systems can suffer from aeration and thermal fade under sustained race loads. K-Tech's Through-Rod architecture addresses both: the rod passes through the full damper body, increasing oil volume contact area and promoting faster heat transfer away from the working fluid. The result is a fork that feels the same on lap one as it does on the final lap of a Superbike sprint — a tangible advantage when championship points depend on late-race consistency.

The closed-cartridge design also means damping forces are genuinely separated and independently adjustable. When a technical team wants to understand exactly what the front wheel is doing through a high-speed chicane or under heavy braking, the TRDS-R provides the mechanical clarity to make data-backed setup decisions rather than educated guesses.

Championship-Proven Pedigree

The TRDS-R platform is not a road-derived product adapted for the track — it originates from race series where suspension homologation and budget restrictions demand maximum performance per pound spent. Its presence in British Superbike and at the Isle of Man TT confirms that the design holds up under both the relentless circuit abuse of a full BSB season and the unique, sustained high-speed demands of mountain racing.

Fitment & Compatibility

This kit is specifically calibrated for the Yamaha YZF-R7 across the full current production run. Fitment covers model years 2021, 2022, 2023, 2024, 2025, and 2026. Installation by an authorised K-Tech Service Centre is recommended to ensure correct preload setting, oil fill, and bleed procedure.

Specifications

  • Part number: 160-021-270-015
  • Total length: 717 mm
  • Stroke: 125 mm
  • Compression adjustment: 16 clicks (recommended baseline)
  • Rebound adjustment: 16 clicks (recommended baseline)
  • Preload adjustment range: 18 mm
  • Technology: Through-Rod Damping System — TRDS-R (Regulation)
  • Supplied with: one set of springs
  • Fitment: Yamaha YZF-R7 (2021–2026)
  • Installation: authorised K-Tech Service Centre recommended
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