ATK GT

Brake fluid capacity & service interval

ATK GT uses brake fluid with a capacity range of 0.5 to 1.0 liters. Service intervals require a change every 24 months. The data covers 3 configurations.

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

TypeSpecifications
GT 250 (2011-2017)
  • Use: Normal
  • Between min and max.
  • Change 24 months
GT 250 R (2011-2017)
  • Use: Normal
  • Between min and max.
  • Change 24 months
GT 650 R (2011-2017)
  • Use: Normal
  • Between min and max.
  • Change 24 months

Additional Notes

  • The ATK GT lineup covering the GT 250, GT 250 R, and GT 650 R all share a hydraulic brake system, which means brake fluid is pressurized to actuate the calipers rather than relying on mechanical linkage.
  • Across all three variants spanning 2011-2017, the fill level specification is expressed as a range between a minimum and maximum mark rather than a fixed volume, which is standard practice for hydraulic brake reservoirs where precise milliliter quantities are less relevant than maintaining fluid within the sight window.
  • The 24-month change interval applies under normal use conditions for the GT 250, GT 250 R, and GT 650 R alike, meaning brake fluid replacement is time-based rather than mileage-based across the entire GT range covered here.
  • A time-based interval of 24 months reflects the hygroscopic nature of brake fluid, which absorbs moisture from the atmosphere over time and lowers its boiling point regardless of how many kilometers have been ridden.
  • The identical service interval and fill specification across the 250cc and 650cc engine displacements indicates that displacement alone does not alter the brake fluid maintenance schedule within the ATK GT series for 2011-2017.

Other Systems