
The facts.
| Brand | K-Tech |
|---|---|
| Part Number | 160-021-270-020 |
| Model | TRDS-R Closed Cartridge Kit |
| Total Length | 728 mm |
| Stroke | 125 mm |
| Compression Clicks | 16 (recommended baseline) |
| Rebound Clicks | 16 (recommended baseline) |
| Preload Adjustment | 18 mm range |
| Fitment | Yamaha YZF-R1 M RN65 (2020–2026) |
DescriptionThe whole story▼
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
| Specification | Detail |
|---|---|
| Part Number | 160-021-270-020 |
| Total Length | 728 mm |
| Stroke | 125 mm |
| Compression Clicks | 16 (recommended baseline) |
| Rebound Clicks | 16 (recommended baseline) |
| Preload Adjustment | 18 mm range |
| Technology | TRDS-R Through-Rod Damping System |
| Supplied With | One set of springs |
| Fitment | Yamaha YZF-R1 M RN65 (2020–2026) |
| Installation | Authorised K-Tech Service Centre recommended |
What's includedEverything in the box▼
- 1x K-Tech TRDS-R Closed Cartridge Kit
- 1x Set of springs
FitmentWhich bikes this fits▼
- Yamaha YZF-R1 M RN65 (2020–2026)
Questions, one topic at a time.
Get the real shipping cost for this item to your address — the same rates as checkout.
Choose a destination and hit Estimate — we fetch the live rates for this item.
We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.
Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.
Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.
Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.
As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.
On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.
You have the right to cancel within 14 days of receiving your order. Register your return by email first; once it’s approved you have a further 14 days to send the goods back. Items should be unused and in their original packaging.
Register your return by email with your order number before sending anything back, and we’ll send you the return instructions. Please note: returns that aren’t registered in advance can’t be accepted.
The quickest way is to place a new order for the size you need and register a return for the original by email — just let us know it’s an exchange.
We’re sorry — that shouldn’t happen. Contact us with your order number and a photo as soon as you can, and we’ll arrange a replacement or refund right away. Faulty goods are always covered by your statutory warranty.
Refunds go back to your original payment method, usually within 3–5 working days of your return reaching our warehouse.
PayPal, all major credit and debit cards (Visa, Mastercard, American Express), Klarna (pay later and instalments), Apple Pay, Google Pay and more — all processed securely via PayPal and Mollie.
Yes. Choose Klarna at checkout to split your purchase into flexible monthly installments.
Your payment is taken when you place your order. If you choose Klarna, you pay later according to Klarna’s terms.
Every payment runs over an SSL-encrypted connection through certified providers. We never see or store your full card details.
If your order hasn’t shipped yet, contact us as soon as possible and we’ll do our best to change or cancel it.
No — you can check out as a guest. An account simply lets you track orders and reorder faster.
For customers in the EU, prices are shown including your country’s local VAT. For customers outside the EU, prices are shown without VAT — instead, your country’s import taxes and duties may apply on delivery (see the customs question).
Yes. Your invoice is attached to your order confirmation email and is also available in your account.
Yes. We’re an authorised dealer, so every product is 100% original and comes with the full manufacturer warranty.
Yes. Everything we sell is genuine and comes with the manufacturer’s warranty, on top of your statutory rights. Keep your invoice as proof of purchase and contact us if you ever need to make a claim — we’ll help you through it.
Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.