Shimano Dura-Ace RD-7900-SS B-Tension Rear Derailleur 10-Speed Adjusting Bolt – M4 x 13.5mm – Y55625080
The following are an “A” match which indicates that the parts are the same in materials, appearance, finish and size etc.
– Shimano Dura-Ace RD-9000
– Shimano Ultegra Di2 RD-6870
– Shimano Ultegra RD-6800
– Shimano Ultegra Di2 RD-6770-A
– Shimano Ultegra Di2 RD-6770
– Shimano Ultegra RD-6700-A
– Shimano Ultegra RD-6700
– Shimano 105 RD-5701
– Shimano 105 RD-5700-A
– Shimano 105 RD-5700
– Shimano Tiagra RD-4601
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.