Thread: Hilux Lift Question

Originally Posted by stug

Tyre size is something like a 5% increase in circumference before needing a certificate.

So you can get a 5% boost on your RUC by doing this?

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Originally Posted by Ned

So you can get a 5% boost on your RUC by doing this?

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Normally most manufacturers have a more than 5% tolerance in the speedo anyway, for COF it can't be more than 10% out so I'm told and the same for WOF incidentally but I have never heard of it being checked at WOF ever. Part of the cert requirements is recalibrating the speedo, and providing the cert for the change in 'approved' tyre size - so the RUC thing really is a non-event for real life purposes.