The facts.
| Brand | Spider Racing |
|---|---|
| Part Number | 50.25.239.51 |
| Offset | 25 mm |
| Inclination | 6.5° |
| Clamp Diameter | Ø51 mm |
| Fitment | Aprilia RS 660 (2020–2026) |
| Country of Manufacture | Italy |
DescriptionThe whole story▼
Engineered for riders who demand race-sharp steering response on both track and road, the Spider Racing Handlebar Offset 25 is a precision Italian-made clip-on upgrade purpose-built for the Aprilia RS 660 (2020–2026). With a 25 mm offset and a 6.5° sweep angle, it places your hands in exactly the position that maximises cornering feedback and reduces fatigue during extended sessions.
Key Features
- Refined 25 mm offset and 6.5° inclination deliver an aggressive yet ergonomically sound riding position for track and spirited road use.
- Clamp diameter of Ø51 mm ensures a precise, rattle-free fit on the Aprilia RS 660 front end — no adapters, no compromises.
- Plug-and-play installation designed specifically for the RS 660, keeping fitting time to a minimum between sessions.
- Manufactured in Italy by Spider Racing to exacting quality standards, combining proven durability with the finish expected of premium Italian components.
- Matching handlebar tubes included, so the kit arrives as a complete, ready-to-fit assembly.
Track & Road Performance
The geometry of a handlebar has a direct effect on how a motorcycle behaves mid-corner. Spider Racing's 25 mm offset positions the rider further forward over the front axle compared to a standard bar, sharpening turn-in response on the RS 660's 660 cc parallel-twin platform. The 6.5° inclination keeps wrist angle neutral under braking and through slow chicanes, reducing the muscle fatigue that accumulates across a full track day or a long mountain pass. Every dimension has been dialled in for this specific chassis rather than adapted from a universal part, so the geometry works with the RS 660's existing suspension and steering geometry rather than against it.
Build Quality
Spider Racing produces this handlebar in Italy using robust construction methods and close manufacturing tolerances. The Ø51 mm clamp interface is machined to mate cleanly with the RS 660 top yoke, eliminating the micro-movement that can dull steering feel on lesser aftermarket parts. The result is a component that maintains its integrity across repeated hard use, whether that means kerb strikes at a circuit or the vibration of an extended road tour.
Fitment & Compatibility
This handlebar is designed exclusively for the following motorcycle:
- Aprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024, 2025, 2026
Clamp diameter: Ø51 mm. No modification to the front end is required for a standard fitment.
Specifications
| Specification | Detail |
|---|---|
| Offset | 25 mm |
| Inclination | 6.5° |
| Clamp diameter | Ø51 mm |
| Fitment | Aprilia RS 660 (2020–2026) |
| Part number | 50.25.239.51 |
| Manufacturer | Spider Racing |
| Country of manufacture | Italy |
What's includedEverything in the box▼
- 1x Spider Racing Handlebar Offset 25
- Matching handlebar tubes
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2020–2026)
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