Which size tyres for IVA
I'm a bit confused over what size tyre to fit. I'm using the sierra gearbox and speedo and I want to make sure that the speedo readings are within IVA spec.
The sierra original tyres were 185/65 R14 and I am looking at Toyo T1R's. The perfect match are 195/55 R15's at Approx £60 each whereas 195/50 15's are £36 each.
Will the cheaper ones be ok. I assume that the speedo will read less than actual.
Cheers
Peter
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