I picked up a used set of Kosei K4R wheels for street-class autocross. I don't see these listed in the wheel directory yet, so I figured I'd make a thread in case anyone else is considering these wheels.
Specs:
- 17x7.0"
- +50mm offset
- 5x100 bolt pattern (Note: The wheels have the text "5x114.3" cast into the front. I have seen this on several sets of K4R wheels. It's just the way it is. The label on the wheel barrel says 5x100).
- 14.0 lbs according to TireRack. My bathroom scale says 14.2 lbs (without wheel weights or center cap).
- 9 spokes
- Made in Japan
- Tilt-cast spokes and flow-formed barrel
As of March 2017, you can purchase these new from TireRack for $199 each.
Pics on car:
Pictures of wheels:
