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Orbit Z 1.5R

Orbit Z 1.5R


A top-spec reducer headset, the Orbit Z 1.5R features sealed angular contact bearings top and bottom, running in CNC machined internal alloy cups. The bearings take a 1-1/8in plain steerer, with an alloy top cover for a clean appearance.


  • 1-1/8in, 36 degrees/ 45 degrees ACB
  • For 55mm OD head tube
  • For 1.5in sized head tube and 1-1/8in steerer
  • Alloy top cover
  • CNC machined alloy cups
  • Angular Contact Bearing (blue seal)


  • Stack Height 7.1+3.5=10.6mm
  • Weight: 140g