The sprocket 40 tooth cog E Thirteen EX allows benefit from the new standard transmission speeds utlizados in 1X11 X01 XX1 and groups without having to change everything! The solution is to install the pinion EX Cog 34 teeth behind your tape XT or XTR 10 speed, remove the sprocket 15 or 17 teeth and make the settings change.


Features:


     Only compatible with cassettes XT and XTR 11-34 teeth
     More compatibility information in the images of the product
     There in Black, Blue or Black
     Material: Aluminum EXA +
     Thickness: 5mm
     More info on installing this link: http: //service.bythehive.com/Guide/How+to+install+the+EX+cog+on+a+Shimano+10sp+drivetrain/42