[francesconyc]

What is the minimum safe thread length for wheel studs when adding spacers?

I'm asking because the other day I changed the rear rotors and I wanted to add some H&R 14mm spacers I recently bought. These spacers come with 70mm long stud. 70mm is way too long to be able to fit them without removing the entire hub. maybe, I say maybe but I need confirmation, I could remove the parking brake gears to have lateral access but 70mm may be still too long

Anyway, in the meantime, I measured the 70mm studs inserted in the old rotors with the 14mm spacer. I also fully screwed the lug nut entirely (~27mm), which leaves me 18mm to be filled by the wheel itself + the hub disc

Does anyone know those values by any chance (wheel + hub disc)?

how to calculate a safe stud length with Fuchs wheels?

IF the current wheel bolt/studs are 45mm, adding a 14mm spacer, wouldn't require only a 50-58mm stud? those 10mm can help avoid removing the hub I think



btw my rear wheels are original Fuchs 7Jx16