Geoff Duke will be making his final lap of the Mountain Course this afternoon.
A hearse carrying his coffin will leave the TT Grandstand at 2.30pm.
The six-time World Champion and TT winner passed away on Friday 1st May at the age of 92.
David Cretney MLC will wave the starting flag.
Geoff's sons Peter and Mike will follow on motorcycles with the rest of the Duke family in cars.
Fans are invited to join the lap and pay their last respects - whether on a bike or in a car.
The cortege will be on open roads and will observe all the speed limits but it is thought the hearse will "open it up a bit" over the Mountain Road.
Meanwhile, Police are reminding motorists that the Mountain road will remain two way throughout the memorial lap and are asking drivers to be respectful of the lead vehicles and not overtake them.
Police and DOI officers will be positioned at various points throughout the course to provide what they call "a reassuring presence" whilst helping traffic movement.
They say with the expected numbers, congestion is likely at various points around the course and drivers should follow any instructions from police officers.
Officers say they hope the lap will provide a fitting send-off for Mr Duke and that all those taking part will have a safe and memorable lap.
Man jailed for sports centre hot tub attack
New chair of Ramsey Commissioners hopes to see more development
Changes to Steam Packet schedules next week
Minister acknowledges need to act quickly to mitigate concerns of hospitality sector
Neil Taverner wins Cleveland Medal
Technical issue behind flight delay
