K-Tech TRDS-R Closed Cartridge Kit – Yamaha YZF-R1 M RN65 (2020–2026) – 160-021-270-020

Built for the highest levels of competition, the K-Tech TRDS-R Closed Cartridge Kit delivers race-proven suspension performance for the Yamaha YZF-R1 M RN65 across the full 2020–2026 model range. Trusted on the British Superbike grid and the Isle of Man TT, this is a system engineered where safety margins and lap-time consistency are non-negotiable.

Key Features

• Through-Rod Damping System (TRDS-R) technology enables precise, repeatable adjustment of both compression and rebound damping — giving riders and technicians full confidence in suspension behaviour under race conditions.
• The 'R' designation stands for Regulation, meaning the kit is tuned to deliver high-precision setup control that directly translates to optimised lap times and predictable handling.
• Lightweight, compact closed cartridge architecture improves heat dissipation, maintaining consistent damping performance even during extended race stints or extreme track sessions.
• Designed specifically for riders and teams operating within budget constraints or limited sponsorship — race-level hardware without the top-tier factory price tag.
• Supplied with a spring set as standard, allowing immediate fitment and baseline setup without additional procurement.
• Installation by an authorised K-Tech Service Centre is recommended to ensure correct configuration and safety compliance.

Through-Rod Technology Explained

Unlike conventional cartridge systems, the TRDS-R routes the damping rod through the full length of the cartridge body. This arrangement provides a more linear and accurate response to inputs at both ends of the suspension travel, allowing technicians to dial in compression and rebound with a level of granularity that traditional designs cannot match. The result is a fork that communicates honestly with the rider — critical when braking hard into a chicane or holding a line through a fast third-gear corner.

Race-Proven, Road-Legal Credibility

The TRDS-R has earned its reputation at the sharp end of competitive motorcycling. Its appearance in British Superbike and at the Isle of Man TT is not a marketing claim — it reflects the confidence that professional teams place in K-Tech's engineering when the consequences of a poorly damped front end are measured in more than lost tenths. That same reliability transfers directly to track-day and club-racing environments where consistent, trustworthy suspension is the foundation of rider confidence and safety.

Fitment & Compatibility

This closed cartridge kit is designed and validated for the following application:

• Yamaha YZF-R1 M — chassis code RN65 — model years 2020, 2021, 2022, 2023, 2024, 2025 and 2026

Always verify your chassis code before ordering. If in doubt, contact the Inter-Pace technical team for confirmation.

Specifications