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  • Index Thumb Shifter
SKU: 870000851

Index Thumb Shifter


This is a shifter set for 21 speed bikes. Thumb shifters make for easy shifting on the go.

  • Set includes 8 speed rear index shifter, 3 speed front index shifter and cables
  • Front shifter is compatible with front derailleurs from all name-brand manufacturers
  • Rear shifter carries a 2:1 actuation ratio which is compatible with Shimano rear derailleurs
  • Matte black finish
  • SunRun drivetrain components combine high quality, performance and compatibility in a very affordable design that will work with almost any cycling application, from recreation and commuting, to competition.
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