Hyosung RT
Brake fluid capacity & service interval
Hyosung RT uses brake fluid with a capacity range between min and max. Service intervals include checking every 4000 km and changing every 24 months. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| RT 125 D (2007- ) |
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| RT 125 Karion (2003-2006) |
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Additional Notes
- The Hyosung RT 125 D and RT 125 Karion both specify brake fluid levels as "between min and max," which is a reservoir-based fill indicator rather than a fixed volume — typical for hydraulic brake systems where fluid level reflects pad wear and system integrity rather than a measured capacity.
- The RT 125 Karion (2003-2006) carries a brake fluid check interval of every 4,000 km under normal use conditions.
- The RT 125 D (2007- ) shares the same 4,000 km check interval and 24-month change interval as the RT 125 Karion, meaning both models align on brake fluid service frequency despite belonging to different production periods.
- A 24-month change interval applies to both configurations regardless of mileage accumulated, reflecting the time-based degradation of brake fluid — primarily moisture absorption — rather than wear-based deterioration alone.