SRAM RED AXS 2x Power Meter Chainring Kit - 56/43t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 MFPN=GY5121-11 8mm 1-piece 6-bolt disc rotor

8mm 1-piece 6-bolt disc rotor features consistent operating temperatures and built in wear indicators

Transitioning to the shoulder knobs is smooth and supported

spindle CrMo size 9/16" color deep blue weight 379g

Pro level competition tire

SRAM RED AXS 2x Power Meter Chainring Kit - 56/43t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 MFPN=GY5121-11 8mm 1-piece 6-bolt disc rotorIntegrated power meter and chainring combo Accurate to + 1. 5% and unaffected by temperature changes Integrated rings are incredibly long lasting Combine with 8 bolt compatible crankarms SRAM Model ID: PM AXS KITR E1 TECH SPECS BB Inclusion No Speed 12 Teeth 56 43 BCD Direct Mount SRAM 8 Bolt Connectivity ANT+ BT