Piaggio Super Hexagon

Brake fluid capacity & service interval

Piaggio Super Hexagon brake fluid capacity ranges from min to max. Service intervals require a change every 24 months. The data covers 2 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Super Hexagon GTX 125 (1995-2003)
  • Use: Normal
  • Between min and max.
  • Change 24 months
Super Hexagon GTX 180 (1995-2003)
  • Use: Normal
  • Between min and max.
  • Change 24 months

Additional Notes

  • The Piaggio Super Hexagon GTX 125 and GTX 180 both carry a brake fluid fill level defined as between the minimum and maximum marks on the reservoir, rather than a fixed volume. A fill-to-marks specification is standard for hydraulic brake systems, where the reservoir level reflects pad wear and fluid condition rather than a measured quantity.
  • A 24-month change interval applies to the brake fluid in both the GTX 125 and GTX 180 under normal use conditions. Brake fluid is hygroscopic, meaning it absorbs moisture from the atmosphere over time, which lowers its boiling point and can compromise braking performance regardless of mileage accumulated.
  • The 24-month interval is tied specifically to normal use conditions across both configurations. No variation in the change interval exists between the GTX 125 and GTX 180, as both share identical service timing for the hydraulic brake system.
  • Both the GTX 125 and GTX 180 are noted as hydraulic brake systems, which confirms the brake fluid specification applies to a fluid-actuated circuit rather than a mechanical or cable-operated arrangement. Hydraulic systems require periodic fluid replacement because degraded fluid can introduce vapor lock risk under heat.

Other Systems