Dougie Lampkin's stunt filmed by Red Bull TV
Viewers around the world are expected to see a motorcycle trials icon do a continuous wheelie around the TT course today.
Roads will be left-hand lane only between 5pm and 8:30pm tonight as 40-year-old Dougie Lampkin takes on the challenge - which will be filmed by Red Bull TV.
Strong to gale force winds may cause some disruption in the 37.7 mile attempt.
Warning cars will process behind him to ensure his safety.