Should i change my tyres?

vaio

I suppose you must put enough pressure into it so the tyre's contact patch is the right shape when loaded

ailuro2

With a car tyre you want the whole of the tread in contact with the road, overinflating will make the tread round and let just the central area of tread be in contact with the road. Aswell as being a smaller contact area it will wear the tyres unevenly and they need replaced sooner. Underinflated tyres will roll along on the shoulders more than the middle and wear on both outer areas, obviously not good to wear down the shoulder area that's the most important part of the tyre, imho.

doing either will increase fuel consumption by around 5% or maybe more because you have to move the tyre in a way it's not designed for.

1/4 of your fuel goes in moving those tyres, so best to get the pressures right.

On a bike the tyres might be designed to have a small patch of contact with the road, hence the need to pump them up to 120psi

How are your tyres today, OP, did you get them checked out ( have you thought about putting the spare on till you can get the other one checked out?;)

dannymccann

benham3160 wrote: »

Sounds like they may be inflated to high.

Either way, might be "one of them things" providing they hold up no reason to change.

Slight aside, always have your "best" tyres fitted to the REAR of a vehicle like this.

Regards,
Andy

Why? Its a front wheel drive car? On my FWD cars I always put the newest tyres on the steering wheels

mambo69

i am going to go down later this morning to have them looked at/replaced. I pumped up last night, ensured at 35, checked this morning and now down to 30, so looks like definitily not right

Thanks for all the answers as well

pstuart

dannymccann wrote: »

Why? Its a front wheel drive car? On my FWD cars I always put the newest tyres on the steering wheels

All of the tyre manufacturers recommend that the best tyres go on the rear to improve cornering.

However, most people don't drive (or get the chance to drive) like the Stig and would prefer to have better traction and braking, particulary in the wet, from their front wheels.

getmore4less

dannymccann wrote: »

Why? Its a front wheel drive car? On my FWD cars I always put the newest tyres on the steering wheels

New tyres on the rear reduce the risk of oversteer and spinning, also can give better straight line stability when braking.

Some modern cars have electronic stability controls which can reduce this requirement

Also means they get rotated to the front so don't get old and need changing before being worn out.

benham3160

I'm a firm believer in the tyre manufacturers advice that it's best to fit them to the rear.

Losing grip at the front of a car is a lot easier to control in a front wheel drive car ("foot off the gas") than trying to control a rear end that doesn't want to follow the front of the car!

I'd rather have a firmly "anchored" rear end, I've tried different setups, and it's definately better for me having more grip on the rear tyres! Especially if you have a car that is inclined to a bit of "lift off oversteer", like some Peugeots, Citroens etc....

Regards,
Andy

Pew_Pew_Pew_Lasers!

benham3160 wrote: »

"Weight" doesn't affect pressure in a container of a fixed volume. You may have more air particules, but that doesn't always correlate to pressure.

Steering is generally the reason the front and rear wheels are set differently......

Sorry to be a smart !!!!.

Regards,
Andy

Tyres are not a fixed volume.