TT fans will have to watch much of this year's action from behind mesh fences.
It's one of the safety measures introduced in the wake of the tragic incident at the end of last year's senior race.
Reporter Tim Glover says at Quarterbridge riders would normally pass at low speed, but that might not happen in an emergency (audio file attached):
(Picture: An aerial view of Quarterbridge).
'A good vibe': Easter Festival of Running returns in a week's time
Hundreds of locals and visitors taking part in staple of Manx sporting calendar
Snooker: Port St Mary Legion maintain advantage
They beat Malew in the Mann Crane Hire League
Hockey: Relegation scrap in Men's Division 1 goes to final day
Castletown B miss out on crucial points
FC Isle of Man confirm fixture changes
Clashes affecting Chadderton and Barnoldswick Town games
Netball: Castle Rushen scoop three secondary school titles
The Southern school won the coveted Senior Final