^ The other problem with the Ellipses is that they use a french threaded lockring (rather than english or italian like literally everyone else now). I almost ****ed up the threads trying to use a standard english one I had laying around before I learned this... luckily didn't force it and was able to easily clean it up, but had to order a frenchie one for it and wait before installing my second cog. Mildly annoying.