I remember seeing one site that made them 19mm thick but I can't find it now. Most of the ones I am seeing now seem to be between 25-30mm.

Does anyone know where to get them as thin as possible?

 

Wheel Adapters, Wheel Spacers, Hub Centric Rings | Motorsport Technology

 

That's the one!

 

They made my drill guide for doing the 5x114 conversion

 

Recommended for sure!

I use a set of spacers from them to run my SSR Type C RS wheels, I had the spacers made to be hub centric to the hub and to the rims both.

Bolted on my new wheels and tires and the they rolled as smooth as the factory wheels and tires at all speeds, very impressed.

 

You can also try bilit wheel adapters. They will match or beat any advertised price. Made me some for my 09 gmc sierra.they worked out great..

 

Does anyone try to buy from them and how much is average spent?

 

I had my Wheel spacers done by them, superb quality!

 

+1 for motorsport-tech. Been running their adapters for 4 years now with 0 issues.