K-Tech GBS-019 fork slide bush kit for Yamaha YZF-R1 M RN32 RN49 RN65
02 · Data & docs

The facts.

Technical data
BrandK-Tech
Part NumberGBS-019
FitmentYamaha YZF-R1 M RN32, RN49, RN65 (2015–2026)
Inner Diameter43.00 mm
Outer Diameter47.00 mm
Height15.00 mm
Wall Thickness2.00 mm
MaterialHardened steel with copper coating, PTFE-coated contact surface
Quantity2 slide bushes per set
DescriptionThe whole story▼

Engineered exclusively for the Yamaha YZF-R1 M in chassis variants RN32, RN49 and RN65, the K-Tech GBS-019 slide bush kit is the precision-grade solution for restoring fork action to its safest, most responsive state. Built to exact OEM dimensions and beyond in material quality, this kit is the responsible choice whenever fork service or suspension rebuild is on the agenda.

Key Features

  • Direct OEM replacement designed to the exact dimensions of the original Yamaha YZF-R1 M fork guide bushes, eliminating guesswork during installation.
  • Hardened steel construction with a copper coating delivers the structural integrity and corrosion resistance demanded by both track and road environments.
  • PTFE-coated contact surfaces reduce sliding friction to an absolute minimum, restoring the smooth, precise fork response that makes the R1 M's chassis so capable.
  • Reduced friction means less heat build-up during sustained use, contributing to longer service life and consistent suspension performance lap after lap.
  • Complete set of two slide bushes covers the full front fork assembly in a single purchase — no partial-rebuild compromise.
  • Recommended fitment by an authorised K-Tech service centre ensures the geometry and damping calibration of the Ohlins-based fork remain within safe operating parameters.

Construction & Performance

K-Tech's GBS-019 bushes are manufactured from hardened steel, then copper-coated to provide an additional barrier against moisture ingress and corrosion — a genuine concern on a machine used in variable track and road conditions. The inner contact surface carries a PTFE treatment, a material chosen for its exceptionally low coefficient of friction even under the side-loading that the YZF-R1 M's aggressive chassis geometry generates during hard cornering. The result is fork movement that is linear, stiction-free and predictable: exactly what a rider needs when braking deep into a corner at circuit pace.

At 2.00 mm wall thickness, these bushes sit within the tight tolerance window that the YZF-R1 M's semi-active Ohlins fork demands. Even minor deviations in bush geometry can compromise damping accuracy and, more critically, rider safety — which is why K-Tech specifies professional installation using the correct workshop tooling.

Fitment & Compatibility

This kit is designed exclusively for the following models:

  • Yamaha YZF-R1 M — chassis code RN32 (2015–2016)
  • Yamaha YZF-R1 M — chassis code RN49 (2017–2020)
  • Yamaha YZF-R1 M — chassis code RN65 (2021–2026)

Important: this kit is not suitable for the standard Yamaha YZF-R1. Always confirm the chassis code before ordering. Installation must be carried out by an authorised K-Tech service centre using specialist tooling and knowledge to ensure maximum performance and safety.

Specifications

  • Inner diameter: 43.00 mm
  • Outer diameter: 47.00 mm
  • Height: 15.00 mm
  • Wall thickness: 2.00 mm
  • Material: hardened steel with copper coating
  • Contact surface: PTFE-coated
  • Quantity: 2 slide bushes per set
  • Part number: GBS-019
What's includedEverything in the box▼
  • 2x K-Tech fork slide bushes for the front fork
FitmentWhich bikes this fits▼
  • Yamaha YZF-R1 M RN32, RN49 & RN65 (2015–2026)
07 · Support

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08 · Paddock

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