Police are reiterating the Mountain Road is closed to cyclists - after one had to be stopped ignoring the rules.
Officers from the roads policing unit say they had to turn away one cyclist just hours after the regulations came into force on Friday.
On Facebook, they say they turned him away as he tried to pedal through the Ramsey Hairpin.
The entire route from Ramsey to the Creg ny Baa is closed to bicycles during the Festival of Motorcycling.
How much cash can government raise in 10 days, asks MHK
LegCo considers meeting on a different day
Extra promenade bus facilities would cost estimated £735k
Medieval cross returned home to Royal Chapel
Arbory MHKs in "parasite politicians" spat
Tyson Fury's boxing glove sold for £7k in charity auction
Parcels may be hit by customs charges under EU rules
Number of police searches rises by nearly 37 percent