Dura-Ace is the admiral ship of Shimano, the Japanese (now multinational) manufacturer of cycling components (and some other things like fishing tackle and rowing equipment). Here is a brief history of the Shimano Dura-Ace.
“Handmade by machines” is the slogan of BMC impec 2013. BMC defining their goal as “zero error”. And the result is really an impressive machine. You can see and feel the perfect quality of every detail.
2013 Dura-Ace, Shimano’s high-end road groupset will be 11 speed. The new version of the groupset is also lighter and stiffer.