i have heard of XD wheels but not HD wheels
XD wheels are distrubited thru Wheel Pros.
Wheel Pros Introduction

check the website out. let me know if that is what your talking about.

be careful when buying wheels !!! the JUNK WHEEL MARKET is just like the JUNK AUDIO MARKET. (IE): AR = Acoustic Research not Acoustic Response!! DARN JUNK PRODUCTS.

PS: I was formerly a regional rep for the largest wheel MFG in the world. so yeah you can say i know my wheels!!!