The Kore Mega Range Sprocket is an economical way to dramatically extend the range of your 10 speed drivetrain. This expander cog simply slides in behind an 11-36 tooth cassette, supplying 11% more gearing range. Kore's Mega Range Sprocket can be used with their Stronghold Chainring to easily transform your 2x10 gearing setup into an efficient 1x10 setup, eliminating the weight and clunk of a front derailleur, front shifter, cable, and inner chainring.

Features:

• 7075 aluminum extended range cog for running 1x10 with a full range of gears
• Fits Shimano XT/XTR 11-36t (M771/M980) 
• Requires removal of the 17T or 15T cog
• Longer B-screw and spacer included. May require a longer 10sp chain

Specifications:

• Material: AL7075-T6 Full CNC with laser logos
• Tooth Options: 40T 
  
• Includes Spacer & Longer B Tensioner Bolt
• Published Weight: 78 grams
• Colour: Black
• Shimano compatibility