Gilles BRC brake reservoir cover for Aprilia RS 660, with the colour inserts
02 · Data & docs

The facts.

Technical data
BrandGilles Tooling
SeriesBRC
Part numberBRC-18-B
TypeBrake fluid reservoir cover, rear
MaterialCNC-milled aluminium
ColourBlack
Coloured insertssilver, red, blue (one each)
FittingReplaces the original reservoir cover
FitmentAprilia RS 660 (2021–2026)
Road approvalNot required (Gilles)
DescriptionThe whole story▼

The RS 660's 659 cc twin is derived from the front cylinder bank of the RSV4, and the bike brought superbike-style electronics to the middleweight class in 2021. At the back, its rear brake reservoir takes Gilles' BRC-18-B, a milled cap with a choice of three ring colours.

Key Features

  • Cover for the rear brake fluid reservoir
  • Replaces the original reservoir cover quickly
  • One coloured ring each in silver, red and blue
  • The ring colour is your choice, as a visual accent
  • CNC-milled aluminium
  • No registration required, according to Gilles

Up to the current model

Every RS 660 from the 2021 launch onwards is covered, the 2025 update included. The front reservoir takes the BRC-06, which comes with four rings instead of three.

Road Approval

According to Gilles, the cover needs no approval on the Aprilia RS 660. Nothing changes in the papers; what matters is a clean reservoir and a correctly seated cover.

Scope of Delivery

One Gilles BRC-18-B rear reservoir cover in black with 3 coloured rings (silver, red, blue). You fit the ring you like; the others stay in the box for a later change of colour, and the original cover can be kept.

Fitting

Clean the reservoir and its surroundings before you start, because the brake fluid has to stay free of dirt and water. Replace the cover quickly, with the reservoir level, and tighten it evenly. Afterwards check the fluid level and operate the brake several times to confirm a firm feel before the first ride.

Specifications

  • Brand: Gilles Tooling
  • Series: BRC
  • Part number: BRC-18-B
  • Type: Brake fluid reservoir cover, rear
  • Material: CNC-milled aluminium
  • Colour: Black
  • Coloured inserts: silver, red, blue (one each)
  • Fitting: Replaces the original reservoir cover
  • Fitment: Aprilia RS 660 (2021–2026)
  • Road approval: Not required (Gilles)
What's includedEverything in the box▼
  • 1x Gilles BRC-18-B rear brake reservoir cover
  • 3 coloured inserts: silver, red, blue
FitmentWhich bikes this fits▼
  • Aprilia RS 660 (2021–2026)
07 · Support

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08 · Paddock

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