Park Tool FR-4 Freewheel Removal Tool For Atom, Regina, Zeus

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Are your well-muscled legs spinning out your current Atom, Regina, or Zeus freewheel? The Park Tool FR-4 Freewheel Removal Tool makes it easy to remove and replace your single speed freewheel.
  • Fits Atom, Regina, splined Zeus, and some Schwinn Approved freewheels
  • The FR-4 has 20 splines and is approximately 21.6mm in diameter
  • 1" base fits most wrenches or vices