Bonamici Racing PSY1 aluminium top yoke for Yamaha YZF-R1/M 2015-2026
02 · Data & docs

The facts.

Technical data
Part NumberPSY1
BrandBonamici Racing
TypeTop yoke, street version
MaterialHigh-tensile aluminium
FinishHard anodised (black or silver)
Key-block plate provisionYes (pre-prepared for street use)
Origin100% Made in Italy
FitmentYamaha YZF-R1/M RN32 (2015-2016), RN49 (2017-2019), RN65 (2020-2026)
DescriptionThe whole story

Engineered for riders who demand race-bred steering precision from their Yamaha YZF-R1 or YZF-R1M, the Bonamici Racing PSY1 top yoke is a direct-fitment, high-strength aluminium replacement that sharpens front-end feel and chassis stability across the RN32, RN49 and RN65 generations (2015-2026). Produced entirely in Italy to exacting tolerances, it brings genuine track-derived geometry refinement to road use without compromising street legality.

Key Features

  • High-strength aluminium construction delivers a significant reduction in flex compared to the OEM yoke, translating directly into more precise, confidence-inspiring steering on both road and track.
  • Street-spec design retains the key-block lock plate provision, meaning the unit bolts straight on without any modification to the ignition or steering lock mechanism.
  • Available in anodised black or anodised silver — both finishes are durable, corrosion-resistant and complement the aggressive lines of the YZF-R1/M.
  • 100% Made in Italy under Bonamici Racing's race-proven manufacturing standards, ensuring consistent quality and dimensional accuracy.
  • Bolt-on installation with no frame or fork modification required — a straightforward upgrade for any experienced home mechanic or race team.

Performance on Track and Road

The PSY1 top yoke is the starting point for dialling in front-end geometry on the YZF-R1 platform. Where the OEM component prioritises mass production tolerances, the Bonamici Racing unit is machined to tighter specs, reducing unwanted flex at the fork crown. The result is a more direct line of communication between the tyre contact patch and the rider's hands — critical when chasing lap times or navigating fast, technical road sections at speed. The street variant retains full compatibility with the standard key-block steering plate, so daily road use is entirely unaffected.

Build Quality

Bonamici Racing machines the PSY1 from high-tensile aluminium billet, then hard anodises each piece in-house. The anodising is not merely cosmetic — it creates a surface that resists scratches, corrosive road chemicals and track debris far better than a painted or uncoated surface. Every unit leaves the Bonamici facility in Italy subject to the same dimensional checks applied to their full race-spec components.

Fitment & Compatibility

This top yoke is designed exclusively for the following motorcycles:

  • Yamaha YZF-R1 — RN32 (2015-2016), RN49 (2017-2019), RN65 (2020-2026)
  • Yamaha YZF-R1M — RN32 (2015-2016), RN49 (2017-2019), RN65 (2020-2026)

No modification to the fork tubes, frame or steering lock assembly is required. The street version includes preparation for the key-block steering plate as standard.

Specifications

  • Part Number: PSY1
  • Brand: Bonamici Racing
  • Type: Top yoke (street version)
  • Material: High-tensile aluminium
  • Finish: Hard anodised — black or silver
  • Key-block plate provision: Yes (pre-prepared)
  • Origin: 100% Made in Italy
  • Fitment: Yamaha YZF-R1/M RN32, RN49, RN65 (2015-2026)
FitmentWhich bikes this fits
  • Yamaha YZF-R1/M RN32, RN49 & RN65 (2015–2026)
07 · Support

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08 · Paddock

Before you go.

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