The XX Eagle T-Type AXS(TM) Power Meter Wide carbon crankset boasts SRAM's XX T-Type crank arm with an integrated power meter to record and deliver live accurate power readings to your head unit. Utilizing an all-new spider-based design this is SRAM's most accurate high performing power meter. The new spider design uses a proprietary chainring mount system which allows reduced weight without compromising reliability. A dual sided power measurement system calculates total watts - it's subtle lightweight and boasts an extra long battery life. It is also compatible with the RockShox Flight Attendant system allowing for total connectivity between all AXS(TM) enabled components. No-compromise high-performance data delivery giving you an edge over the competition.Utilizes an all-new spider-based design this is SRAM's most accurate high performing power meterNew spider design uses a proprietary threaded chainring mount system that reduces weight without compromising reliabilityUnique groundbreaking design integrated with SRAM's lightest crank+/- 1.5% accuracy provides your true watts outputBluetooth low energy technology and ANT+ wireless data transferMagicZero - automatically checks and recalibrates your power meter as you rideAxCad -- no cadence magnet required for reliabilty and a cleaner lookWaterproof (IPX7 waterproof to 1 meter for 30 minutes)55mm Chainline174 Q-factorDUB bottom bracket and spacers NOT included