The emergency services are reminding people not to cycle over the Mountain Road during TT.
The route is currently shut as Department of Infrastructure workers install signs and equipment for the one-way system.
It's due to reopen at 4.30pm, when vehicles will be able to travel from Ramsey to Douglas.
But the ESJCR says cycling is banned on the Mountain Road until Tuesday, June 10.
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Take care on the roads, say police