Shimano dura ace 7900 10sp bar end shifter setprecision engineered dura ace 10 speed bar end shift levers features superior dura ace quality means reliability and durability easily fit into bar ends and secure firmly for assured shifting can be used with double or triple chainsets sis indexed system compatible comes complete with sp41 gear cables which are lubricated internally along their length with low friction silicon grease to reduce cable friction weight 178g a pair not compatible will