Updated and Edited. I've left in but struck out comments that I believe are unfair. Final conclusion - installer error.
50 hours ago (actually more like 40) I replaced my 350 hour old OEM Beta Evo linkage bearings with an All Balls kit.
Suffice to say that you get what you pay for, or less.
Today I pulled the linkage apart for a 50 hour service and found every roller in every bearing has lost an end guide tit. The resulting mess of debris and ground up metallic paste seized some b