Rieju RS3
Brake fluid capacity & service interval
The Rieju RS3 uses brake fluid with a capacity range between minimum and maximum values. Four configurations of the model are covered in the data.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| RS3 125 (2012-2021) |
|
| RS3 125 NKD (2012-2021) |
|
| RS3 50 (2012-2021) |
|
| RS3 50 NKD (2012-2021) |
|
Additional Notes
- All four RS3 variants covered in the 2012-2021 span share a hydraulic brake system, meaning brake fluid is pressurized through lines and calipers rather than routed through a mechanical cable linkage.
- The Rieju RS3 brake fluid specification applies equally to the 125cc and 50cc engine displacements, indicating the hydraulic braking architecture is consistent across both power classes.
- The NKD (naked) variants of both the RS3 125 and RS3 50 carry the same hydraulic brake system specification as their faired counterparts, reflecting no change in braking hardware between the two body styles.
- A "between min and max" fill specification refers to maintaining fluid level within the reservoir's marked boundaries. Falling below the minimum mark can introduce air into the hydraulic circuit, while overfilling above the maximum can cause pressure irregularities as fluid expands with heat.
- The normal use condition across all four RS3 variants means the stated fill range applies to standard riding environments, without a separate severe-use interval or capacity adjustment listed for more demanding operating conditions.