Gilles OFC oil filler cap for Yamaha R1, with the colour inserts⟲ 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandGilles Tooling
SeriesOFC
Part numberOFC-27-30
TypeOil filler cap
ThreadM27 x 3.0
Head diameter35.3 mm
MaterialAircraft-grade aluminium
Safety wireHoles provided
FitmentYamaha R1 (2015–2026)
Road approvalNot required (Gilles)
DescriptionThe whole story▼

The R1's crossplane four is a direct descendant of Yamaha's MotoGP technology, and many R1s are used on circuits. Gilles lists the OFC-27-30, which has holes for a safety wire, for its oil filler.

Key Features

  • Thread M27 x 3.0, head diameter 35.3 mm
  • Holes for a safety wire
  • Distinctive Gilles design
  • All four anodised colour inserts included
  • Hexagon socket plus the enclosed tool for opening and closing
  • No registration required, according to Gilles

RN32 to GYTR

The listing covers the R1 of types RN32, RN49 and RN65 and the GYTR race version.

Wired for racing

Race regulations often require filler caps to be secured with safety wire, and this size of OFC is prepared for it.

Blue for the R1

Blue suits the Yamaha racing colours, silver keeps the cap neutral on bikes in custom liveries.

Road Approval

Gilles marks the OFC as not requiring registration on the Yamaha R1. The cap replaces the original one, and nothing has to be entered in the vehicle documents.

Scope of Delivery

One Gilles OFC oil filler cap (M27 x 3.0), all four anodised colour inserts and the tool for opening and closing.

Fitting

With the engine off and cool, unscrew the original filler cap and screw the OFC in by hand. Tighten it with the supplied tool; firm is enough. Choose the insert colour you want and check the oil level as usual.

Specifications

  • Brand: Gilles Tooling
  • Series: OFC
  • Part number: OFC-27-30
  • Type: Oil filler cap
  • Thread: M27 x 3.0
  • Head diameter: 35.3 mm
  • Material: Aircraft-grade aluminium
  • Safety wire: Holes provided
  • Fitment: Yamaha R1 (2015–2026)
  • Road approval: Not required (Gilles)
What's includedEverything in the box▼
  • 1x Gilles OFC oil filler cap, M27 x 3.0
  • 4 anodised colour inserts
  • Tool for opening and closing
FitmentWhich bikes this fits▼
  • Yamaha R1 (2015–2026)
07 · Support

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