Steam Packet Southern 100 Road Races
MOTOR ISLE Billown Course, Castletown, Isle of Man. A National Competition
On Monday 87h to Thursday 10th July 2025
Held under the National Sporting Code of the Auto-Cycle Union Fourth Edition
And the 2025 Standing Regulations for Road Races of the Auto-Cycle Union
Permit No ACU205251 and these Supplementary Regulations.
ACU Permit No ACU205251