Mastercraft tires are crap.
These are all the 15" tires sizes Tire Rack lists as currently available. All the data you need to evaluate them is at Tirerack.com. Price, reviews. specs,, etc. Enjoy.
115/70-15
125/70-15
125/80-15
135/80-15
145/65-15
155-15
155/60-15
155/80-15
165-15
165/60-15
165/65-15
165/80-15
175/55-15
175/60-15
175/65-15
175/70-15
185-15
185/55-15
185/60-15
185/65-15
185/70-15
195/45-15
195/50-15
195/55-15
195/60-15
195/65-15
195/70-15
205/50-15
205/55-15
205/60-15
205/65-15
205/70-15
205/75-15
215/60-15
215/65-15
215/70-15
215/75-15
225/45-15
225/50-15
225/60-15
225/70-15
225/75-15
235/50-15
235/60-15
235/70-15
235/75-15
245/40-15
245/50-15
245/60-15
255/60-15
255/65-15
255/70-15
265/50-15
265/70-15
275/60-15
295/35-15
295/50-15
295/55-15
30X9.5-15
31X10.5-15
32X11.5-15
33X10.5-15
33X12.5-15
345/35-15
35X12.5-15
7R15LT