The incident occurred on Thursday (19 May) on Bankowa Street in Bolesławiec (near the special school building).
According to preliminary information, the motorcyclist lost control of the vehicle, fell, and slid along the road. After the incident, an oil-based substance was left on the road.
The fire brigade, police, and emergency medical services were at the scene. The man was attended to by paramedics. The motorcyclist was taken to hospital.
Police are determining the details of the incident.