Standard is around 55mm offset so if you go 45 the rim will be 10mm out closer to the guard on the same width rim, therefore having a 35mm offset would allow a 40mm wider rim before it scraped your strut but you may end up having to pump/roll the guards to avoid scraping...............hope that clears it up??

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.