Now that many top UCI DHers are running this, including those on idler bikes, we maybe want to talk about this similar product (at 3x the price).
https://www.pinkbike.com/news/williams-racing-products-release-new-centrehub-decoupling-spider.html
HXR and Intend make a similar thing to the Williams.
https://www.pinkbike.com/news/williams-racing-products-release-new-centrehub-decoupling-spider.html
HXR and Intend make a similar thing to the Williams.