GBRacing Alternator Cover for Aprilia RS 660 (2020–2026)

GBRacing has built its reputation on protection that does not compromise the look of your machine, and the alternator cover for the Aprilia RS 660 is a fine example of that philosophy. Crafted from a 60% glass-fibre nylon composite, this precision-engineered cover brings the brand's distinctive motorsport aesthetic to one of the most crash-vulnerable points on the RS 660's engine — giving you the confidence to push harder on road or track.

Key Features

• 60% glass-fibre reinforced nylon composite construction — lightweight, rigid and highly impact-resistant
• Bolt-on fitment requires no adhesives; all mounting hardware is included for a clean, fuss-free installation
• Shields the alternator housing from crash damage, dramatically reducing the risk of costly engine repairs after a slide
• Designed to complement the RS 660's sharp bodywork without adding unnecessary bulk
• Direct OEM-location fitment engineered specifically for the 2020–2026 RS 660 — no modification required

Design, Finish and Heritage

GBRacing's origin is firmly rooted in circuit racing, where protecting expensive engine casings between sessions is not a luxury but a necessity. That heritage is visible in every detail of this alternator cover: the crisp moulded lines that mirror the RS 660's angular fairing language, the textured composite surface that resists scuffs and looks purposeful alongside the bike's factory finish, and the precise fit that sits flush without gaps or rattles. Where aftermarket covers often look like an afterthought, GBRacing's design reads as an intentional upgrade — the kind of detail that distinguishes a well-prepared motorcycle from a standard one.

Performance and Protection

In a get-off, the alternator cover is among the first points of contact with the road. A cracked or destroyed alternator housing means oil loss, potential seizure, and a repair bill that quickly dwarfs the cost of prevention. The 60% glass-fibre nylon composite used here is engineered to absorb and distribute impact energy rather than shattering, keeping the underlying casing intact through the kinds of low-speed tip-overs and track incidents that happen to even experienced riders. The material remains stable across a wide temperature range, so repeated heat cycles from hard riding do not cause warping or premature fatigue.

Fitment and Compatibility

• Aprilia RS 660 (2020–2026)

Specifications

• Part number: EC-RS660-2021-1-GBR
• Brand: GBRacing
• Material: 60% glass-fibre reinforced nylon composite
• Fitment: Aprilia RS 660, model years 2020–2026
• Installation: Bolt-on, no adhesive required
• Hardware: Mounting bolts included