Is It OK To Have A Smaller Spare Tire?

Is it OK to have mismatched tires?

A car with mismatched front and back tires should still be usable, especially if it is a two wheel drive vehicle.

If the tires are different sizes then they may also wear at different rates, and you’ll be shopping for new tires sooner than you think.

Functionally, mismatched tires will wear out at different rates..

Can you drive with different size tires?

Having different sizes on some four wheel and all wheel drive vehicles can actually do damage to the vehicle. Since tires vary from brand to brand, and even from model to model, damage can even occur with tires of the same size if they have a large enough difference in circumference.

Can I drive 200 miles on a donut?

A general rule of thumb is to drive no more than 70 miles and no faster than 50 miles per hour before replacing your donut with a new tire. The biggest reason to use these space savers for a short period of time is because they have little to no tread. This makes the spare vulnerable to road hazards and projectiles.

Can you drive with a smaller spare tire?

It’s important not to drive on a spare tire for an extended period of time, as the difference in size will gradually throw off the vehicle’s alignment and handling. In addition, their smaller circumference leads to a difference in RPMs compared to the other three tires.

Why is the spare tire smaller?

The main reason your spare tire is smaller is because they are meant to take up less space in your vehicle. Donut spares usually have a smaller diameter, narrower width and shallower tread, which means they make great space-savers. This is especially important to maximize the storage area in your boot.

Can I drive 5 miles on a flat tire?

To be safe, driving on a flat tire at all is too far. If your tire has lost all air pressure, it not only will damage the tire beyond the possibility of repair, but can put you in harm’s way. … If you choose to drive it to the shop, stop every mile or so to check the tire’s pressure.

Do tires have to be the exact size?

Wheels and tires must be of the same diameter– e.g. only mount a 16″ tire on a 16″ wheel. However there is one other caveat– wheel width and tire width. Check Tirerack or other sites with tire specs– the acceptable wheel width depends on the particular tire model/size involved.

Do spare tires have to be the same size?

A full-size spare is the same exact size as the other tires on the vehicle. Full-size spares come in either matching or non-matching varieties. A matching spare is completely identical to the other tires currently on your car.

What happens if you put a smaller tire on your car?

Potential Gains. Smaller-diameter tires can increase acceleration by reducing the drivetrain’s effective gear ratio, which allows your engine to exert more torque per revolution. Shorter tires also get your car lower to the ground for reduced aerodynamic drag and increased fuel economy and high-speed stability.

Can wrong size tires damage car?

Unfortunately, altering the tire size of a vehicle without thorough and careful consideration is a decision that can really bite. Fitting the wrong tire size can cause damage to a vehicle, and is a real safety hazard as well.

Why is a spare tire called a donut?

Just because the early spares used to be the same size as the rest of the wheels, and then they came out with the space saver spares on some cars, so the smaller sized tires and rims, with the same lug nut hole spacing, were dubbed the donut nickname.