long shot - help with these tyres

[LeeRS]

Might be getting these tonight for the clip for track wheels.
The chap doesn't know the bore size or anything but they are on a Renault 5 turbo. Or were...

They are team dynamics that's about all I know from him. He hasn't got them with him to measure the bore size.
Anyone know anything about these?

 

[LeeRS]

I meant rims in the title.

Failing these, are 16" standard 172 alloys any good for track? Can get some cheap if so.

 

[LeeRS]

Just found this.
Centre bore is the same but what about the offsets?

Mk2 is 35-38 and the gt turbo is 37-45.

Does that help?