You can also look up for it on internet forums, although it may take longer. You can look up for the original oil specs in the workshop manual or by asking to an official dealer. In case you can’t find the original oil, use the one with the closest kinematic viscosity.
We recommend using the original oil on your suspensions so that the damping behavior is not changed. Want to learn more? Get our Motorcycle Geometry and Suspension Adjustment e-book! General recommendations