Giant Power Pro Power Meter Shimano Ultegra R8000 52/36T double chainset 172.5mm

  
The Shimano Ultegra R8000 Double Chainset - HollowTech II 52/36 is compatible with HollowTech II bottom brackets. The HollowTech II cold forged 4 arm crank saving weight, this chainset is designed for use with 11-speed drivetrains and for use with HG-EV chains, providing better, more comprehensive cover when powering onwards.