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.