K-Tech Front Fork Valve Kit Yamaha YZF-R6 (2006-2016) 125-900-500

Precision damping control for your Yamaha YZF-R6 begins with components machined to tolerances that the original fork internals simply cannot match. The K-Tech Front Fork Valve Kit (part number 125-900-500) is engineered exclusively for use with K-Tech RDS front fork cartridges, bringing a refined PD Flow Control Valve design that gives riders granular, repeatable adjustment whether they are chasing lap times or dialling in a road setup.

Key Features

• Improved needle design delivers finer, more precise damping adjustment compared to the standard valve arrangement.
• PD Flow Control Valve with a 33.50 mm valve diameter, purpose-built to complement the 41 mm fork leg of the YZF-R6.
• Adjustment clicks provide clear, tactile feedback so damping changes are measurable and easily repeatable between sessions.
• Direct replacement for the original valve within the K-Tech RDS cartridge system — no modification required beyond the cartridge installation itself.
• Designed to unlock the full potential of K-Tech RDS front fork cartridges, maximising both comfort and control across road and track use.

Build Quality and Design

K-Tech has built its reputation on suspension components that meet the demands of professional racing while remaining accessible to serious road riders. The 125-900-500 valve kit reflects that philosophy: the PD Flow Control Valve is manufactured to exacting dimensional tolerances, with the 33.50 mm diameter specified to work in precise harmony with the 41 mm fork tube of the YZF-R6. The improved needle geometry is the heart of the design — it expands the effective adjustment range and sharpens the difference between each click, so every setting change produces a noticeable, predictable result rather than a vague approximation.

Performance on Road and Track

Fitted inside K-Tech RDS cartridges, this valve kit transforms the fork's damping response from a fixed compromise into a tunable platform. Whether you are softening the front end for a bumpy circuit or stiffening it for a smooth track day, the click-adjustable system lets you move through settings methodically and return to a known baseline with confidence. The consistency of adjustment is particularly valuable over a full race weekend, where changing conditions demand repeated, incremental tweaks rather than guesswork.

Important Compatibility Note

This fork valve kit is designed exclusively for use with K-Tech RDS front fork cartridges. It is not compatible with the original OEM damping system and must not be installed without the corresponding K-Tech RDS cartridge assembly in place. Always confirm cartridge fitment before ordering.

Fitment and Compatibility

The K-Tech Front Fork Valve Kit 125-900-500 fits the following motorcycle:

• Yamaha YZF-R6 — model years 2006 to 2016

Specifications