Rear derailleur (2)

Option: 1, 9 Speed(Medium cage) 2, 10 Speed(Medium cage) —————————————————————————— Model: Sram X5 Color: Black Speed: 9/10 Speed (9 speed version compatible for 8 speed) Mount: Direct mount Cage: Medium...

Option 1, Black (Medium cage) 2, Black (Long cage) 3, Silver (Medium cage) —————————————————————————— Model: Sram X4 Color: Black / Silver Speed: 7/8/9 Speed Mount: Direct mount Cage: Medium cage...