DT Swiss DT 350 MTB 28X100X15MMta Centre Lock Front Hub, Black DT SWISS 350 road front 28 hole 15 mm thru-axle center-lock disc Black Contact-free seals and high precision build guarantee smooth bearings Use center-lock adaptor(hu1342) for six-bolt rotors . Hub drilling: 28 . Defined color: Black . Spoke interface: j-bend