Why Are Spare Tires Rated For 50 Mph?

How long can you drive on a full size spare?

Still, many factors influence how long you can and should drive on a spare tire, including what kind of spare your vehicle includes.

A full-size spare provides the longest life, but most space-saver spares require replacement at around 70 miles..

Can I drive 100 miles on a donut?

Safe-Saver/Donut Spare Tire 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.

Is it OK to put a donut on the front tire?

It is also recommended to only use a donut spare tire (smaller than a regular tire) in the rear of the car, and not on the front. Driving longer distances on a spare in the front can also lead to certain parts of your car being damaged, since the tire is a different size.

What speed are spare tires rated for?

50 mphYou should not drive over 50 mph and no more than 50 miles with a donut-type spare tire. Driving for long distances on a spare tire can potentially cause damage to other car parts, including the transmission.

How long can a car sit on a donut?

Donut tires are only meant to be temporary fixes for a flat tire until you can safety reach a Chicago area service center to get your tire replaced. In general, most donuts should not be driven on for longer than 50-70 miles.

Can I drive 5 miles on a flat tire?

How far is too far? 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.

Why spare wheel is smaller?

The main reason your spare tire is smaller is that they are meant to take up less space in your vehicle. The 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.

How much does a spare tire cost?

Spare tire prices vary greatly depending on the type of spare you purchase, and often start at $100 and go up. A full-size matching spare generally costs more than twice that of a compact temporary. Some donut tires can be purchased online for as low as $50, but are more expensive at a tire retailer.

Why do truck tires explode?

Often, the blowout will occur simply because the driver didn’t properly inflate their truck’s tires or they failed to change a tire that’s overworn. In both of these scenarios, a blowout can stem from tread separation, which causes the tire to rapidly lose air pressure and explode.

Can you drive 70 mph on a spare tire?

How Fast Can I Drive On A Spare Tire. Spare tires are all rated differently and are indicated as such on the side. They all have a speed rating, but it’s typically understood that spare tires shouldn’t be driven faster than 50 mph. While it’s not recommended to go more than 70 miles, you can stretch the life to 90.

What happens if you go over 50 on a spare tire?

If that’s missing or illegible, the rule of thumb is to not drive faster than 50 mph with a donut spare tire. Going faster could cause tire failure, differential damage, or both. Try to avoid the freeway if possible. And get to a tire repair facility as soon as possible.

How long do spare tires last?

seven to 10 yearsMost full-size spare tires are designed to last anywhere from seven to 10 years, according to John Paul. That said, drivers should never use a tire with visible damage, such as cracks in the sidewall, punctures, impact bulges or irregular tread wear – all of which are dangerous to drive on.

What’s the difference between a spare tire and a donut?

Spare tires are full-size tires that are the same size as your existing tires. … On the other hand, donuts are a temporary spare tire . They are much smaller than your regular tires and are only meant for short distances until you can get a new full-sized tire.

Can I reuse a spare tire?

Some time ago a rep from a tire manufacturer says a compact spare will last up to 3000 miles before it wears out. Of course no one is supposed to put that much mileage on them since they are intended for temporary use. But they are intended to be used repeatedly so long as they are not worn out or damaged.

Can you go faster than 50 on a donut?

Here are a few things to note when driving with a donut tire: … This is because they are more compact, so the guideline is the spare tire should not be driven faster than 50 mph. While you can drive on highways with donut tires, it is safer to stay off of them as you will only be able to go about 50 mph or less.