Since 1973, Shimano's Dura-Ace components have been at the forefront of pro racing & pro-level technology. Dura-Ace has continued its legacy of being proven in the peloton as well as serving as a launch pad for new technologies. Dura-Ace Di 2 (Dual Integrated Intelligence) moves to the next generation. Tested in competition & taken to victory by pro riders in all conditions, including the 2012 Tour de France Team Sky. Whether you're building a new bike or looking to upgrade your trusty steed, the groupset offers a hassle-free way to outfit your bike with the finest components available. This full groupset
Includes:: Di 2 STI shifters: Now with enhanced feedback & enhanced ergonomics for easier access to the shift buttons from the top of the hoods. Di 2 front mech: Fast, silent, accurate shifts every time. Di 2 rear derailleur: Now lighter & more compact, with E-tube connection to simplify installation. Chainset: Bottom bracket is BSA threaded english standard. Unique four-arm spider design sets new standards for stiffness & low weight. Bottom bracket (BSA thread only). 7901 Chain. Cassette: Smooth, fast shifting guaranteed. Brake calipers: new symmetrical dual pivot design for enhanced efficiency & controllability. External Battery. Battery charger unit. Complete set of junction boxes & wiring (internal) for a tidy aesthetic. Contents: 1 x STI levers 1 x Rear Derailleur 1 x Front Derailleur 1 x Front Brake Caliper 1 x Rear Brake Caliper 1 x Chainset 1 x BSA Bottom Bracket 1 x Chain 1 x SMEW90A Junction Box A 1 x SMJC40 Junction Box B 6 x EW-SD50 Cable 1 x External Battery 1 x Battery Holder 1 x Battery Charger Can’t find the spec you want? Contact our Customer Services team & we will do our best to source the exact spec you would like.