The DMR frame (can't remember what it's called) as can the Solid Flair like I used to have. The one thing these both have in common is that the main pivot is around the BB.
DMR bolt is it?
Kona a as mentioned and kowan ds. Think dartmoor have a frame out that will do it now and a fireeye frame too. Dobermann le pink.
Spesh new p thing? All more slope orientated though.
Was a proper hoot, but sadly a bit on the small size for me.
Frame is for sale at a bargain price if you want to dip your toe in the SS full-sus waters