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@miro_o
@ BMMF
Well maybe. I only know about these Optimum things as I was planning buy some 25c Pro Race 3s and they cropped up in a search.
I had some Lithions in 2009 and I thought they were super shit under braking. I don't know if my pair were old or in some way damaged, or whether the compound has since changed. Some people rave about more recent Lithions.