SRAM RED AXS 2x Power Meter Chainring Kit - 54/41t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 D640 5-55mm Type Bearing Size Range

5-55mm Type Bearing Size Range 47

With hydraulic control and linear response

Our signature self-developed SegRange™ technology extends the range

6" with Tanwall Net Weight 71lbs

SRAM RED AXS 2x Power Meter Chainring Kit - 54/41t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 D640 5-55mm Type Bearing Size RangeIts the ultimate in integrated power measurement. The RED AXS power meter kit adds Quarq technology to SRAM's one piece chainrings for the lightest stiffest and most accurate power package available. A 13 tooth delta on all chainring pairs ensures precise shifting for any setup as well as a less dramatic change in cadence during front shifts. Combined with our most durable chainrings ever its an unbeatable combination. X Range gearing technology gives