RSP 42Tooth Cassette Expansion Sprocket

Easily extend your current 36t 10 speed cassette to a 40t or 42t cassette. Simply remove your 17 tooth sprocket to make room for your expansion sprocket. Extended derailleur limit screw and spacer supplied.

Features

  • 42 Tooth version compatible with SRAM and Shimano 10 Speed Cassettes.
  • Available in Black, Red & Blue
  • Converts 36t 10 speed cassettes to 40 or 42t
  • Compatible with most cassettes
  • Simply remove your 17t sprocket to make room for your expansion sprocket
  • Compatible with medium and long cage derailleurs