Ask Honest John

Most recently answered low profile tyres questions
I would like to place an order for a new Range Rover Évoque Prestige model but, before I do so, I need to make a decision on the wheel/rim size and tyres for maximum ride comfort. The standard alloy on...
I have a Mazda 3 Sport shod with Toyo Proxes R32 205/50R17 89W. The tyres are rather low profile, giving a slightly lumpy ride. I wonder if you can recommend a deeper profile tyre for this vehicle?
I often hear that low profile tyres are a silly fad, but in my limited experience I feel that the car actually is more responsive and steers better. The tyres may wear faster and generate more road noise,...
What is the advantage that wide alloy wheels and low profile tyres have over more normal wheels and tyres, apart from a harsher ride?
In your column 14 January, MV of Thatcham stated that "larger diameter rims increase exhaust emissions," but did not say why. I can see that average engine revs will be lower for the same journey average...
I wondered if you would be kind enough to tell me why car manufactures fit low profile tyres to their vehicles as 'standard'. My brother bought a new Jaguar, which was supplied with them on, and he noticed...
We have an Audi A4 Avant 2.0 TDI which is almost six years old with just over 69,000 miles. The rear tyres are approaching replacement after 36,000 miles (including 4000 temporarily on the front). Previously,...
I have a 2005 Jaguar X-Type 3-litre 4-wheel drive with 14,000 miles since new. I am very pleased with the car, but the road noise is rather high and the tyres are coming up for replacement. I wonder if...
My car has factory fitted 15" alloy wheels. I was thinking of fitting 17" lower profile tyres - but the overall circumference of the wheel would be the same as the original. Do you think ride quality,...
You replied to DM from Droitwich listing the disadvantages of big wheels Sports version of the Mercedes-Benz C-Class. There is another good reason not to buy the C-Class Sport, or indeed any other vehicle...
 

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