Special Offer

E.Thirteen Extended Range 40/42t Cog

Product Reference: E13EXCOG
  • Now £19.95
  • Allows you to make your move to a 1X drivetrain setup
  • Crush the steepest climbs on your bike with a 40t or 42t cog
  • 10 speed mech compatibility
  • Lightweight construction
  • SRAM (42) or Shimano (40/42) compatible
Item out of Stock | In Stock

Make your move to 1X and crush the steepest climbs on your trail bike with the EX cog.

Add much needed range to your existing 1x 10 speed drivetrain without breaking the bank. Shifts stay crisp thanks to e*thirteen speed shift technology and the EXA+ anodized aluminum resists flex under heavy power.


  • cog material EXA+ Aluminum
  • thickness 5mm
  • compatibility 10 speed
  • ring sizes 40t, 42t Shimano™ – 42t Sram™
  • colors blackout, red, blue
  • weight 70g (40t) 77g (42t)
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