Sram centera 9 speed rear twist shifter fits shimano
The sram centera 9 speed rear twist shifter fits shimano offers a perfect option for 3 x 9 speed pavement bicycles this 9 speed rear shifter features srams 21 actuation ratio and srs technology for light and precise indexing compatible with 21 shimano rear derailleurs 58mm comfort grip in line quick view gear indication