K-Tech Race Steering Damper Kit for Yamaha YZF-R3 2015–2018, part 055-55.YA03.02
02 · Data & docs

The facts.

Technical data
BrandK-Tech
Part Number055-55.YA03.02
TypeRace Steering Damper Kit
FitmentYamaha YZF-R3 (2015–2018)
Bore Diameter18.00 mm
Piston Rod Diameter8.00 mm
Overall Length250.00 mm
Stroke65.00 mm
Damping Adjustment22-way
Upper Mounting TypeEye, 8.00 mm bolt diameter
DescriptionThe whole story

Precision-engineered in Britain by K-Tech Suspension, this Race Steering Damper Kit for the Yamaha YZF-R3 (2015–2018) draws on decades of professional motorsport heritage to deliver the kind of handlebar stability that separates a confident, flowing ride from a tank-slapper moment that ends your day. Every dimension, every surface treatment, every seal selection reflects K-Tech's obsessive approach to suspension design — this is not a generic aftermarket add-on but a purpose-built race component adapted for road and track use on the R3.

Key Features

  • 22-way adjustable damping lets you dial in exactly the right level of resistance for the circuit, the road, or anything in between.
  • CSC (Constant Safety Control) system actively absorbs sudden steering inputs, neutralising wobble and tank-slappers before they escalate.
  • Low-friction 8 mm piston rod with specialist surface treatment ensures smooth, consistent stroke throughout the damper's range of motion.
  • Triple-seal configuration — dust wiper plus dual oil seals — keeps contaminants out and fluid in, even in wet or gritty conditions.
  • Nitrogen-pressurised reservoir prevents aeration and foam formation, maintaining consistent damping performance lap after lap.
  • Fully serviceable and rebuildable design with K-Tech spare parts availability, making this a long-term investment rather than a consumable.

Design, Finish and Heritage

K-Tech Suspension was founded on the principle that championship-winning suspension technology should be accessible to serious riders at every level. The Race Steering Damper carries that philosophy into its every detail: the body is finished to K-Tech's exacting standards with the same attention given to components that appear on British Superbike and World Supersport machinery. The eye-to-eye mounting arrangement uses precisely machined 8 mm mounting bolts top and bottom, ensuring the damper sits in perfect alignment with the steering axis — a single piston rod design that eliminates the side-loading and uneven wear that plague inferior twin-rod configurations.

At 250 mm overall length with a 65 mm stroke, the geometry has been calculated specifically for the YZF-R3's chassis, meaning the damper operates in its optimal working range across the full lock-to-lock sweep of the steering. The 18 mm bore diameter provides the swept volume needed for genuine race-grade response without adding unnecessary bulk to the front end of the motorcycle.

Track and Road Performance

Whether you are running the R3 at a track day, competing in Yamaha R3 Cup or simply committing to back-road riding at pace, the consequences of an uncontrolled headshake can be severe. K-Tech's CSC system is calibrated so that gentle, intentional steering inputs pass through with minimal resistance, while the sudden high-frequency oscillations of a true wobble are absorbed and extinguished. The 22-way adjustment range makes this tuning process straightforward: a flat-bladed screwdriver at the adjuster is all that is needed to shift between softer road settings and firmer track configurations.

Installation Note

Installation should be carried out exclusively by an authorised K-Tech Service Centre. Correct fitment requires specialist tooling and technical knowledge to ensure the damper performs as intended and the motorcycle remains safe to ride. Fitting by an unqualified party may compromise both performance and safety.

Fitment and Compatibility

This kit is designed and tested specifically for the following model:

  • Yamaha YZF-R3 — model years 2015, 2016, 2017 and 2018

Specifications

Property Value
Part Number 055-55.YA03.02
Bore Diameter 18.00 mm
Piston Rod Diameter 8.00 mm
Overall Length 250.00 mm
Stroke 65.00 mm
Upper Mounting Type Eye
Upper Mounting Bolt Diameter 8.00 mm
Lower Mounting Type Eye
Lower Mounting Bolt Diameter 8.00 mm
Damping Adjustment 22-way
Fitment Yamaha YZF-R3 (2015–2018)
What's includedEverything in the box
  • 1x K-Tech Race Steering Damper for Yamaha YZF-R3 (2015–2018)
  • Mounting hardware for straightforward, secure installation
FitmentWhich bikes this fits
  • Yamaha YZF-R3 (2015–2018)
07 · Support

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