When trying to figure out tyre sizes or what the writing on them means, in fact heaps of info on tyre and rim sizing check this site out it's most informative and has handy calculators.
http://www.carbibles.com/tyre_bible_pg4.html
and for finding out about load ratings go to Bob Jane Tmart site
http://www.bobjane.com.au/info/load-index-speed-symbol/
http://www.carbibles.com/tyre_bible_pg4.html
and for finding out about load ratings go to Bob Jane Tmart site
http://www.bobjane.com.au/info/load-index-speed-symbol/
