Fits For ST-EF500 Shifter Set 3x7 3x8 Speed 21/24 Speed V-Brake Lever Bike MTB

3x7 Speed Shifter Set. 3x8 Speed Shifter Set. Left & Right: 3 x 7 21 speed / 3 x 8 24 speed. Rugged, easy to install and easy to use.

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