An escorted parade lap of the TT course is taking place this weekend as part of the Isle of Man Festival of Motoring.
The 300 visiting vehicles will only be traveling from the Grandstand to Ramsey, setting off at 10am on Sunday.
Police are advising drivers that this will cause some disruption and road closures, with all major junctions being under police control.
The southbound lane of Glencrutchery Road will close from Greenfield Road to St Ninians Crossroads from 9-11am.
The Mooragh Promenade will also shut from 9:30am-4pm, with the Mountain Road closing from 12-5pm.
The Festival of Motoring is taking place from September 15-17, and this year's theme is 'American Extravaganza.'
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