Police arrested 50 motorcyclists for allegedly modifying their bikes for road racing in a weekly crackdown on Bangkok streets on Friday night.
This week, the crackdown focused on roads in the jurisdiction of the Metropolitan Police Division 3.
Pol Maj Gen Nithithorn Jintakanon, commander of the Traffic Police Division of the Metropolitan Police Bureau, said 48 of the arrested are men and 12 of the 50 arrested are under 18. Seven of the arrested also tested positive to drug use.
Police manning road checkpoints seized 81 motorcycles found to have been illegally modified.
Nithithorn said police also seized 22 exhaust pipes that could emit noises louder than legal limit from 11 motorcycle repair shops during the check at shops in the jurisdiction area of the Metropolitan Police Division 3.