I am in the process of trying to order the Tune hubs that I want from Starbike. I am planning on doing the Mag 180 on the rear. I was informed that I would be better off to go ahead and purchase the titanium freehub. My question is, I've searched around for the part and I believe this is the one that I need... https://www.starbike.com/php/product_info.php?lang=en&pid=9426; however, I am not sure since it does not say it's for the Mag. I just wanted an opinion to see if this is what I need to order. Or, if someone has another location I can purchase this part, please feel free to let me know. I intend to use an XTR cassette. Thanks for the help.