The size you have is about as cheap as you will get in a 16" tire.
Difference between a P225-70 r15 and P215-75 R15 tire Click the link and there you can compare tire sizes.
I doubt it as there is 2" difference in diameter.
One size difference would hardly be noticeable to the average driver under normal conditions.
To find the correct tube size for a bike, you need to match the size of the tube with the size of the tire. Look for the numbers on the tire sidewall, which indicate the tire size. Then, choose a tube that is compatible with that tire size. Make sure the tube is the right width and diameter for your specific bike tire.
The ST means it is a trailer service only tire. P is passenger and LT would be Light truck.
Without you telling us the entire number, we can't say ! - Speed code is at end of the full number
Load rating of the tire. The higher the number the higher the GVW Gross Vehicle Weight the tire is designed to handle.
To convert bike tire sizes, you need to know the current size and the desired size. Use a tire size conversion chart to find the equivalent size in the new measurement system. Make sure the new tire size is compatible with your bike frame and wheel size. Install the new tires and adjust the tire pressure as needed.
To determine the correct bicycle tire size for your bike, look for the tire size printed on the sidewall of your current tire. It will be a combination of numbers like "700x25c" or "26x2.0". Make sure to match this size when purchasing new tires for your bike.
To determine the size of bike tire you need for your bicycle, look for the tire size printed on the sidewall of your current tire. It will be a combination of numbers like "700x25" or "26x2.0". This indicates the diameter and width of the tire. Make sure to match these numbers when purchasing a new tire for your bike.
IF you change the tire size from OE either bigger or smaller there will definatly be a change from the actual speed you are going. Not a huge difference but by maybe 1-3 mph depending on your tire size