As for how far, ideally, not very far. Generally though, if you are wondering how fast can i drive on a spare tire, you should keep it below 50 mph for best safety and longevity. 2 Months On A Donut And Not Even The Old Rim In The Car Rjustrolledintotheshop Take a look at the spare and make there there is no cracking in the rubber or defects through a visual inspection. How fast can you drive on a spare tire reddit . A full size spare would be the same size and shape as the rest of your tires. I assume you are referring to a space saver spare, the kind that has printed in large letters on the side “do not exceed 50 mph” or words to that effect. Do not exceed more than 50 miles per hour speed on a spare tire. If you have a donut spare tire, you can drive around 50 miles under 40 mph, but it is strongly recommended to replace it as soon as possible. However, there are laws in each country which stipulate how fast you are allowed to drive on such tyres now…you can notice that...