Ohlins spring inner diameter?

[M3SA1993]

I was shopping for some ground control camber plates and one of the tabs asks for "spring inner diameter" and has a few different options.

2.50"
2.25"
60mm
Stock

Which option would it be for the ohlins spring?
I've been searching all over trying to get the answer but haven't been able to figure it out. Thanks in advance!

[SAMM3Y]

Stock

[ornicar]

Originally Posted by SAMM3Y

Stock

stock --> Top ID 97mm
Bottom ID 65mm
Length 200mm
rate 60N/mm

[SAMM3Y]

Originally Posted by ornicar

stock --> Top ID 97mm
Bottom ID 65mm
Length 200mm
rate 60N/mm

Ohlins springs are designed to use on stock upper perches/top hats, it's a non linear "stock" style spring that isn't tapered on the front which is where you will be spec'ing your camber plates. Hence "stock"