Are Honda 450 and a Honda 500 tires the same size?

Answer 1

No, but sometimes they are pretty close. Honda CB 450 1986 has a front tire that measures 3.60-19 and a rear tire that measures 4.10-18. The CB 500 Honda Shadow from 1986 uses a front tire of 100/90-18 and a rear tire of 130/90-16. A Honda 450 Super Sport or SS uses a 3.25-19 front tire and a 3.50-18 rear tire. You can see from this that there are different rim sizes for 450 and 500 Hondas. However, you can sometimes put a different rim size under a bike if the difference is not very great. It is especially important that the width of the tire is not very different, as bigger tires and rim will often not fit in the rear swingarm without modification and such modifications change the driving characteristic of the bike, in some cases making them dangerous to drive.