Some pictures of a 560sl hub and a 280sl hub. Reno4u2 was very helpful providing not only the picture of the 560sl hub, but also kin measuring the caliper to stick out past the mounting plate by 1.5 inches and the disc being about 2 3/8 inch from the front of the rotor.
And to show that the 300sl brakes and rotors are the same as the 560sl, here is RenatoMB's hub:
I asked Reno4u2 to measure some distances for me:
1. Distance that hub ring sticks out from mounting face: 9/16"
2. Distance that ring on the Greasecap sticks out from mounting face: 5/8"
3. Distance from mounting face to tip of the grease cap: 1.25"
4. Distance that caliper sticks out in front of mounting face: 1.5"
I will assume that the grease cap can not be larger than 66.6 if the wheel is able to fit over it. Ironically, it looks like it's going to be easier to determine what spacers will fit on a 560sl than it will be to calculate that angle on the older models.
EDIT #999:
While we are in here, let's take a look at how that 560sl front caliper affects whether certain wheels can fit on a 560sl (or any Gen2 r107) with or without spacers. See attached pictures below of:
- BBS RS009 8x16 et11 wheel
- BBS RS009 8x16 et11 wheel
- MB EVO1 8x16 et34 wheel
- MB EVO1 8x16 et34 wheel
- Lorinser LO 8x16 et11 wheel
- Lorinser LO 8x16 et11 wheel
- Lorinser LO 9x16 et10 wheel
Notice that all but the EVO1 wheel have only about one inch max depth between the back side of the wheel face and the mounting plate. The 560sl needs to have at least 1.5" there. Ironically, the EVO1 wheel sits too far back and needs a spacer to not hit the tierods. That EVO1 wheel would clear the caliper, but needs a spacer to fit an r107 for other reasons. Although there's an extra inch of clearance for the caliper on that EVO1 wheel, that wheel has virtually no visible lip on the front of the wheel, where all the other wheels pictured here have about two inches of lip/dish. on the outside edge. One might generalize that there's no way to get more than 1"-1.5" of lip on the front of a Gen2 r107.
I thought this might help folks when trying to figure out what wheels will fit their gen2 SL. It helped me to verify that my BBS RS009 wheels will not fit a 560sl without spacers. Additionally, if one was to try to fit a Lorinser LO 8x16 et11 or BBS RS009 8x16 et11, at least a half inch spacer would be required, lowering the effective offset to a number below Zero. At that point 225/50/16 tires rubbing the air dam, or even the fender become an issue. So smaller tires would be required if someone was to try to run either of these wheel styles with spacers. (I.E. long lugs, spacers, small tires would all be required... and you'd still be "poking" an extra half inch.)
Very helpful information for me. Hope it helps someone else.
Now I still want spacers for those EVO1 wheels in case they end up on my car or a 560sl. I hope to learn something when Roncallo gets back.