UK Car Repair: Vauxhall Timing Belts, vauxhall vectra, timing belts

Question
What is the recommended mileage for renewing the timing belts on a Vauxhall Vectra 2.2 2003 plate ?

Answer
I'm not sure for the Vectra,but the GM 2.2 engine is listed as having no specific recommendation  That being said the average change period is around 65.000 MILES. For my safety and peace of mind i would do it sooner rather than later, say 50,000 miles.