Integrated Headset Options:Integrated Headset - 1-1/8", 5mm, Black Triple-density-foam Performance Body Geometry Contour

Triple-density-foam Performance Body Geometry Contour Chamois is pre-molded to match the shape of the body for exceptional comfort

The Shimano Tiagra FC-4700 2-piece crankset balances weight and efficiency without sacrificing stiffness

just insert the end in the lock body and it locks automatically

Power meter is fully integrated into the chainring set

Compact design makes it easy to carry and store when not in use

Integrated Headset Options:Integrated Headset - 1-1/8", 5mm, Black Triple-density-foam Performance Body Geometry ContourThe Sunday BMX integrated headset is designed to be a quality headset at an affordable price. Laser etched Sunday logo Color matching spacers included Gyro compatible High quality sealed bearings and precision tapered wedge help to keep the headset tight