Park Tool sprocket puller Atom/Regina FR-4

Heat treated alloy tool steel, one inch base fits wrench or vise. Thin wall design allows use without disassembly of cones and lock nuts.

FEATURES:

• Fits Atom®, Regina®, Zeus® with splines and some Schwinn® approved freewheels.
• The FR-4 has 20 splines and a diameter of approximately 21.6 mm.
• The center bore for axle clearance is 10 mm.
• Always use a skewer or axle nut to hold the tool firmly in place during removal.