Dunno if this was posted here already, but ( http://www.pinkbike.com/news/X-Fusion-Revel-hlr-First-Look.html ) the new Revel x-fusion fork is using keyed upper slider section to prevent rotation and therefore greatly increase overall fork torsional rigidity.
I still think USD forks have other issues, but it is interesting to think about ways to enable a light DH fork that is rigid in all directions.
I still think USD forks have other issues, but it is interesting to think about ways to enable a light DH fork that is rigid in all directions.