I'm running on the track Hoosier A7 in 245 on 8"+17" BRM and would like to know if there is a chance to run 9"+17" Rims with 275 ? It looks there is enough room to the inside to go 1" wider
Maui,
Besides what Fran offered regarding inner sidewall contact, watch your overall diameter. It looks like you're on the ragged edge at ~24.7" before you start rubbing the fender/sill area during a turn. Will vary depending on your body alignment but something to consider.