Honley HD

Brake fluid capacity & service interval

Honley HD uses brake fluid with a capacity range between min and max. Service intervals include checking every 6000 km or 12 months and changing every 24 months. The data covers 3 configurations.

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

Type	Specifications
HD1 125, TD125-10C (2008- )	Use: Normal Between min and max. Check 6000 km/ 12 months Change 24 months
HD2 125, TD125-48 (2008- )	Use: Normal Between min and max. Check 6000 km/ 12 months Change 24 months
HD3 SE 125, YB125SP (2008- )	Use: Normal Between min and max. Check 6000 km/ 12 months Change 24 months

Additional Notes

The Honley HD brake fluid level specification calls for fluid to be maintained between the minimum and maximum marks rather than a fixed volume, which is typical of hydraulic brake reservoir servicing where a precise fill quantity is less relevant than maintaining the correct operating range.
All three HD variants — the HD1 125 (TD125-10C), HD2 125 (TD125-48), and HD3 SE 125 (YB125SP) — share an identical check interval of 6,000 km or 12 months, whichever comes first under normal use conditions.
The change interval across all three configurations is set at 24 months under normal use, meaning brake fluid replacement is time-based rather than mileage-based for scheduled renewal purposes.
The 24-month change interval is independent of the 6,000 km or 12-month check cycle, so a fluid level inspection would occur before a full fluid change is due in any given service period.
All three HD models carry a starting year of 2008 and share the hydraulic brake system designation, indicating a consistent brake fluid specification across the HD lineup from that point forward.