will a 26 x 10 slick fit on 15 x 7 rim?

It will physically fit, but you wont get anywhere near all of the tread down. An 8" or wider would be better.
 
I've got 26 x 10.5 x 15 ET Streets on 15 x 8 rims and they work great. That size tire on a 7" wide rim will probably not fit, however the 10" wide slick might fit. It would be pushing it in my opinion.
 
I run 26x10.50 x15 ET streets on the stock rims.They hook up real nice at 12 lbs of pressure and I can launch at 10psi without spinning.
 
10.5 ET Streets are the equivalent of 9" wide ET Drags in width. True 10.5 Slicks would be like 11.5 ET Streets and I wouldn't put those on a stock rim.
 
Top