This past weekend I was going to lower the passenger side rear of my GP to match the drivers side. The passenger side sits about 1/8 inch higher. After taking the rear wheel off I noticed there were only a few threads left of adjustment. My question is for those of you that have lowered your GP's all the way what is the measurement from the top of your wheel center cap to the lip of the wheel well?

 

I just found out as well today and I was planning on go lower to buy a set of KW v1s
, have you lower it yet? If so send me a picture or post it here

 

I use the measurement from the lip of the rim at its lowest point to the bottom of the plastic of the wheel arch. This is the best measurement as it is independent of tire size or pressure. Most other measurements will vary slightly with tire pressure, and quite significantly with tyres.

Using these measurements, fully lowered I have 560mm front and 565 rear. This needs to be measured on a completely level concrete slab. Even floors that look flat but are just a tiny bit off can throw it out a lot. If in doubt turn the car around and measure in the same spot parked the opposite direction to see how much change there is. Also it is not that scientific as the body panels are not perfectly aligned etc

Adjusting the fronts is very easy. The rears are a major PITA!

Robbo