Reply To: X/Y "stiffness" on centre assembly.

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Someone in that thread – the guy that mentioned Ullrich – also says he’s been using aluminium for a while and it’s more rigid than steel, and he hasn’t noticed any kind of “grooving” in the rails.


Oh look, someone here, using 6061 25mm od aluminium tubing (same as mine) and reporting MINIMAL WEAR after some time.