Anyone else seen this? Or ridden it?? http://hxr-components.com/en/products/464-pedalier-hxr-components-easy-shift-kit-3.html Interesting concept - move the free hub from rear wheel to the crank & fix the rear hub. So the chain is always running & you can then shift without putting in pedal strokes. It only works for 1x systems, and as the rear is essentially a fixie, there might be sudden pain if a chain drops :heh: Benefits in quick shift on lumpy terrain & fast corners??