Greg T.wrote a review of Yokozuna Reaction Universal Cable Kit on May 9, 2015
Familiarity: I've put it through the wringer
I replaced my original Campy cables and housing with the Yoko's and hoped to notice a difference in shifting and braking given the expense. I can't say that I noticed any improvement in performance however after just over one year of minimal use the shift housing has cracked. I noticed cracks near the rear derailleur and also at the handlebars. The original Campy cables and housings lasted over 6 years with about 20,000 miles of use.