Tyres - can I change size?

I have an Astra 1.4 Turbo Limited Edition on 235/40/19 tyres. Can I change the tyres to 235/50/19 without affecting performance etc. Would my insurer need to be told?

Asked on 16 November 2016 by markcastle

Answered by Honest John
No. To fit deeper profile tyres you need to go down a wheel size.
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