When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Yes, it's fairly tricky. My discs are 330mm and the conversion is awesome, but it was alot of work getting it there.
I would say that the only way to get brakes like that to work is to get someone who knows what they are doing, but of course that will cost. Martin Hadland is the first person that springs to mind.
I think if I did it again, I would go for the ST170 conversion.