XTX tipped up rails

I'm sure they tested every possible avenue.
 
The 121's have a 260 degree angle...I'm told you can't even tell its there in any conditions

BoonDock Saint said:
wonder how would be having a 8 or 10 degree tipped up rails, better, worse?
 
I'm going to guess that 6 degrees is a compromise between ease/cost of mass manufacture and effectivness with slider wear.
 


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