The new Shimano Dura Ace groupset with new aerodynamic design, lighter weight, more precision and maximum power transfer.
New technologies in the manufacturing and a generous use of titanium and carbon reduce the components weight without losing performance, stiffness or durability. A hollow forged chainring saves weigth and increases stiffness by 20% which allows better power transfer. A new STI design offers cable routing under the bar tape. Reduced actuating forces and improved cable routing on the rear derailleur ensures super fast and precise shifting operation.

Include parts: Dura Ace ST-7900 STI 2x10speed, Dura Ace RD-7900 rear derailleur 2x10speed, Dura Ace FD-7900 front derailleur 2x10speed, Dura Ace BR-7900 brakes, Dura Ace FC-7900 crankset 2x10speed Hollowtech II, Dura Ace SM-FC7900 bottom bracket bearing cups, Dura Ace CS-7900 10speed sprockets and Dura Ace CN-7900 chain.