Shifter (2)

Option: 1, Left(3 Speed) 2, Right(7 Speed) 3, Left + Right(3×7 Speed) —————————————————————————— Model: Sram X3 Left: 3 Speed Right: 7 Speed Color: Black Optical gear display Come with inner...

Option: 1, Left(3 Speed) 2, Right(8 Speed) 3, Left + Right(3×8 Speed) —————————————————————————— Model: Sram X4 Left: 3 Speed Right: 8 Speed Color: Black Optical gear display Come with inner...