K-Tech Race Fork Piston Kit for Yamaha YZF-R6 (2006–2016) – Part No. 20SSRK-KYB-4-HL

If you want measurably better fork damping control from your Yamaha YZF-R6 without endlessly chasing a compromise, the K-Tech Race Fork Piston Kit (20SSRK-KYB-4-HL) is the straightforward answer. Designed and manufactured in the UK to tighter tolerances than the OEM piston, it replaces the standard internals with purpose-built components that give you a far wider, more precise adjustment range — whether you are dialling in for a track day or a full race weekend.

Key Features

• Outer diameter of 20.00 mm, machined to closer tolerances than the original Kayaba piston for more consistent damping response
• Supplied as a complete assembly, reducing installation complexity and the risk of missing components
• New control valves and needles extend the usable adjustment range so you can tune damping precisely to your weight, tyres and circuit
• Designed and manufactured in Great Britain — the same engineering lineage found in K-Tech's World Superbike and British Superbike programmes
• Track-proven performance that builds genuine rider confidence through corners and under hard braking

Build Quality and Engineering

K-Tech's race piston kits are produced at their UK facility using tighter manufacturing tolerances than OEM equivalents. The result is a piston that moves more consistently through the fork leg, eliminating the small but meaningful variations in damping force that stock components can introduce — particularly over a long stint when fork oil temperature rises. The updated control valves and needles included in the kit are central to the wider tuning window: riders and technicians can make finer adjustments that actually hold between sessions, rather than hunting between two inadequate OEM positions.

Practical Value for Track Riders

This kit delivers a concrete performance upgrade at a fraction of the cost of a full aftermarket fork cartridge conversion. Because it arrives as a complete assembly, a competent suspension technician can install it in a single workshop visit. The incremental investment pays back across multiple seasons — the tighter tolerances resist wear more effectively than stock, meaning less frequent replacement and a more predictable setup lap after lap.

Important Safety and Installation Notes

This piston kit is designed exclusively for closed-circuit, track use and is not approved for road use. Installation requires specialist suspension tools and techniques; K-Tech strongly recommends fitting by an authorised K-Tech Service Centre to ensure correct assembly and safe operation.

Fitment and Compatibility

This kit is a direct-fitment replacement for the following model:

• Yamaha YZF-R6 — model years 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016

Specifications