wide tires

[nos4atu]

anyone have an idea on what the widest tire i can safely put on my stock rims (98 cobra rims ) they are 17 x 9. the local tire joints all have differnt answers, and most seem to like the most expensive tires will fit lol.
ps i rather not get my spedo screwed up right now it has 245/45/17's
thx

[cobrabitn]

245/45/17 is the safest tire to put on with the widest track print.