It doesn't really matter but yes, it makes he speed go faster.
The speedometer is attached to a sensor that detects how fast the wheel is turning. This sensor is programmed to detect the speed based on a specific tire size (ie: manufacturer recommended size) A tire smaller than original equipment (oem) will have to spin faster to cover a measured distance whereas a larger tire will spin slower to cover the same distance. Meaning, compared to oem, a smaller tire will cover less ground in 1 complete rotation than oem and a larger tire will cover more ground in one rotation than oem. Since the speedo sensor doesn't know what tires are on your car it can only assume that the oem tire size is on there and therefore cannot compensate for larger it smaller tires than what's specified. Use a tire calculator to find out how far off your speedo is, or you can purchase a type of speedo healer.
This could be caused by a larger or smaller diameter wheel/tire combination being used than the car originally had. Could also be caused by the speedo being out of calibration itself and/or the speedo cable being stretched.
A amaller tire will cause the odo and the speedo to read high. It'll look like you're going faster than you are, and that you've travelled longer than you have.
Well, you need the instructions for the speedo to start with. Then the best method is to do a roll-out. Put a mark on the floor/ground when the valve is straight down, get on the bike and roll forward until the valve is straight down again, make another mark on the floor/ground. Measure the distance between the marks. Feed this measurement into the speedo. If you can't be bothered to do the roll-out, the instructions for the speedo should have a chart with approximate values you can use instead.
The way that you take down the spare tire will depend on the make and model of the vehicle. Some SUVs have the spare tire under the vehicle and require a special tool to wind the tire down to the ground.
the speedo can be un accurate and it may ware harder on the driveline because the cars gears were made to match stalk tire specs the tires might also rub
yes. but your speedo will be a bit slow
My personal answer to this is to follow the PSI amount on the tire itself. Since you will not be using the stock tires, the factory sticker doesn't apply. Also, you need to make sure that since you are going up in tire size, your speedo and transmission are set for the net tire size. a 20 inch tire rotates faster thank a 25 inch tire if the car is traveling at the same speed.
I recommend a highway tire for your best gas mileage. The strength of a tire is referring to the tread size, the larger the tread the larger the tire. Hence, the less gas mileage obtained.
No, Not recommended, the tire 205 tire is over 2 inches taller, might run into clearance issues. Speedo would be off by almost 9%.
Speedometer gears are made of plastic or nylon they wear out. Changing Tire diameter can also mess with a speedometer. Tire size change can be corrected by getting the right sized speedo gear install to correct for the change in tire diameter.
It will put more stress on the engine to get the car up to speed but once it is up to speed you may notice that the speedometer is incorrect due to the larger diameter of the tires. The larger the tire the more effort the engine takes to get the car up to speed.