Shimanos new 105 gives the widest range of road riders the opportunity to ride a groupset that is inspired by professional riders whether it is for everyday riding or longer rides climbs in the weekend the new 105 has an 11 speed drivetrain and adopted some key features from dura ace and ultegra the 105 has that same light action and defined click engagement like dura ace and ultegra partly because of the polymer coated cables and partly because of the redesigned derailleurs and shift lev