Perfect for at single seed setup (1x11).

Gear ratio: 10-12-14-16-18-21-24-28-32-36-42

Can be used with crankset with either 1 or 2 chainrings.

Can be used with these among others: SRAM XX1, X01, X1, GX, Shimano XT M8000, XTR M9000.

Used with XD bodys.