K-Tech DDS Closed Cartridge Kit for Yamaha YZF-R6 RJ27 2017-2026
02 · Data & docs

The facts.

Technical data
BrandK-Tech
Part Number155-017-270-010
FitmentYamaha YZF-R6 RJ27 (2017–2026)
System TypeDDS (Direct Damping System) closed cartridge
Spring Series36-260
Inner Diameter20 mm / 32 mm
Outer Diameter (piston rod)8 mm
Overall Length693 mm
Compression / Rebound Adjustment30-way (each circuit, independent)
Preload Adjustment Range18 mm
DescriptionThe whole story

Trusted by British Superbike teams and proven at the Isle of Man TT, the K-Tech DDS Closed Cartridge Kit for the Yamaha YZF-R6 RJ27 (2017–2026) brings race-validated, safety-assured damping to your original fork. The patented Direct Damping System eliminates cavitation under extreme track conditions, delivering consistent, predictable feedback lap after lap — the kind of reliability that matters when you are carrying full corner speed.

Key Features

  • Race-proven performance: homologated across British Superbike rounds and the Isle of Man TT, giving you confidence backed by the highest levels of motorcycle competition
  • Patented DDS (Direct Damping System) design actively prevents cavitation, ensuring stable and repeatable damping regardless of load or temperature
  • 30-way independently adjustable compression and rebound damping for precise, individualised setup
  • 18 mm preload adjustment for fine, repeatable spring rate tuning without disturbing the damping circuit
  • Asymmetric, independent damping circuits improve chassis dynamics and sharpen response times
  • Increased stroke compared to the original cartridge, expanding the suspension's working range for both road and track use

Engineering Detail

At the heart of the kit is a 20 mm piston that increases oil flow through the 31 mm control valves, allowing the damping force to build smoothly and linearly rather than spiking under hard compression. The 8 mm piston rod minimises system offset, keeping the cartridge geometry true to the fork's original architecture. The pressurised closed-cartridge design maintains oil contact across the full stroke, eliminating the air entrainment that causes inconsistent damping in open-cartridge systems. The spring return force provides constant stability under varying load conditions, making the kit equally effective whether you are chasing a lap time or making rapid direction changes on a challenging road route.

Track Record & Intended Use

K-Tech designed this cartridge kit to work within the stock Yamaha fork tubes, making it a high-impact upgrade without requiring fork replacement. The asymmetric circuit architecture — where compression and rebound circuits operate independently — allows a suspension technician to dial in each characteristic separately, reducing compromise. This is the system of choice for teams where damping consistency under race conditions is a safety-critical requirement, not merely a performance preference. Installation by a K-Tech authorised service centre is strongly recommended; specialist tools and techniques are required to realise the full potential of the system safely.

Fitment & Compatibility

This kit fits the Yamaha YZF-R6 RJ27, model years 2017 to 2026. It is designed for use with the original Yamaha fork tubes — no fork replacement is required. Always verify your specific chassis variant before ordering.

Specifications

  • Spring series: 36-260
  • Inner diameter: 20 mm / 32 mm
  • Outer diameter (piston rod): 8 mm
  • Overall length: 693 mm
  • Recommended compression clicks: 16
  • Recommended rebound clicks: 18
  • Recommended preload: 10 mm
  • Compression / rebound adjustment range: 30 ways (each circuit)
  • Preload adjustment range: 18 mm
  • Part number: 155-017-270-010
What's includedEverything in the box
  • 3 pairs of springs for individual setup
  • Specialist tools for installation
FitmentWhich bikes this fits
  • Yamaha YZF-R6 RJ27 (2017–2026)
07 · Support

Questions, one topic at a time.

Estimate your shipping

Get the real shipping cost for this item to your address — the same rates as checkout.

Pick your countrySame rates as checkout

Choose a destination and hit Estimate — we fetch the live rates for this item.

How long does delivery take?

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.

How much does shipping cost?

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.

Do you ship to my country?

Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.

Will I have to pay customs or import duties?

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.

How can I track my order?

As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.

What if an item is out of stock?

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.

Didn’t find your answer?

Our team will personally help you choose the right gear or part — around 24h for a reply.

08 · Paddock

Before you go.

Trending in the paddockHover pauses
A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00A.Marquez73 V3 TC-2 Ale...KM 1.591,00Márquez Motegi5 TC-6KM 1.591,00Toprak Razgatlıoğlu Rep...KM 1.591,00Valion TC-1 Red / GreyKM 1.508,00
Join the paddock — drops & deals, no noise.