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Profile Z Coaster Rear BMX Hub-14mm - 1
Profile Z Coaster Rear BMX Hub-14mm - 2

Profile Z Coaster Rear BMX Hub-14mm

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About This Product: Profile Z Coaster Rear BMX Hub-14mm

The Profile Z Coaster Rear BMX Hub is a proprietary freecoaster style hub engineered, designed, & manufactured by Profile Racing. It essentially works as a spring/pawl cassette hub that can be disengaged into a freecoaster with varying slack options.


  • The Z Coaster™’s Pawl is “Z” shaped to allow for engagement/disengagement by the center Slack Cam Ring. This allows for adjustable slack by being able to switch cam rings. They are available in 20/33/45 deg, 60 deg, 75 deg, 90 deg, & 115 deg slack opti0ns. This means you can dial in the slack from less than 1/8 of a crank to a full 1/3 of a crank!
  • The Z Coaster™ has an outer driver support bearing for the oversized driver mechanism. This bearing supports the driver from the outside.
  • The Z Coaster™’s pawls and ratchet ring have a proprietary coating that offer smooth engagement.
  • There are 48 points of engagement: all pawls engage simultaneously.
  • Slack Options: 20/33/45 Degrees (45 degrees = 1/8 of a crank), 60 Degrees (1/6 of a crank), 75 Degrees (1/5 of a crank), 90 Degrees (1/4 of a crank), 115 Degrees (1/3 of a crank)
  • Choice of 3/8″ Bolt On or 14mm Axles-Chromoly
  • 36h Only
  • Utility patents and design patents granted & pending.
  • Made here in the USA at the Profile Racing factory.

Z Coaster™ Hub Weights

  • Hub w/14mm GDH Chromo 9t Chromo: 583g/20.55oz
  • Hub w/ 3/8 Chromo 9t Chromo: 559g/19.7oz

Z Coaster™ Hub Dimensions

  • Center to Drive Side Flange–32mm
  • Flange Diameter on Drive-Side–66mm
  • Center to Non-Drive Flange–32mm
  • Flange Diameter on Non-Drive Side–50mm