The Simon Andrews tribute parade lap leaves from The Grandstand at 3pm today.
It's in memory of the TT road racer and Honda Legends rider, who died earlier this month following a crash at the North West 200.
More than 1,000 motorcyclists are expected to take part in the event - which will be led by police for safety reasons.
Riders are being asked to remain behind the escort, keep to their limits and be aware of other road users.
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