Wheel spacers

Hi all, when I bought my 197 I took off the 25mm spacers that were on the car. Too wide for me on the coilovers.

looking at k tec etc I could only see 19mm spacers for sale. I ideally want 15mm. I then found some 15mm hubsentric on eBay but turns out they don’t fit. Speaking to some people 15mm won’t fit over the front hub, does anyone run 15mm or know where I can get some or is it simply a case of 19mm are the smallest for these cars? Other than shims