WK Bikes 650

Brake fluid capacity & service interval

WK Bikes 650 uses brake fluid with a capacity range of min to max. Service intervals occur every 24000 km or 24 months. The data covers 2 configurations.

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

TypeSpecifications
650 TR (2012-2018)
  • Use: Normal
  • Between min and max.
  • Change 24000 km/ 24 months
650i (2011-2018)
  • Use: Normal
  • Between min and max.
  • Change 24000 km/ 24 months

Additional Notes

  • The WK Bikes 650 TR and 650i both specify a brake fluid level maintained between the minimum and maximum reservoir marks, which is the standard service fill range for a hydraulic brake system rather than a measured volume overhaul quantity.
  • The 650 TR covers model years 2012-2018, while the 650i covers 2011-2018, giving the 650i one additional model year at the start of the range.
  • Both the 650 TR and 650i share an identical change interval of 24,000 km or 24 months under normal use conditions, whichever comes first.
  • The dual-trigger interval of 24,000 km or 24 months reflects the nature of brake fluid as a hygroscopic fluid, where time-based degradation from moisture absorption can occur independently of distance traveled.

Other Systems