Feature(may vary by option.)

●Type / Pulley Cage / Mounting: Di2 / GS / Direct
●Rear compatible speeds, compatible chains, total capacity: 11 speeds, HG-X11, 39T
●Supported top gear (min/max): 11/12T
●Supported Raw Gear (Min/Max): 28/34T
●Maximum Supported Front Teeth Differential: 16T

[Compatible CS (low side): 25-30T]

[Compatible CS (low side): 28-34T]

Description