Shimano RS910 Bar End Junction-A Box SRAM Designed to improve the look

Designed to improve the look of your bike and make tubeless setups easier

Compatible with SRAM and Shimano 10-speed drive trains

The Park Tool BBT-19

SRAM Red XG1090 10 Spd Cassette - Powerdome X

Shimano RS910 Bar End Junction-A Box SRAM Designed to improve the lookShimano RS910 Bar End Junction A Box Frame Junction Box connects via SD50 E tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware