Item # FR-4/ Tools / Cassette & Freewheel
Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts.
Just So You Know
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- Fits Atom®, Regina®, splined Zeus®, and some Schwinn®-approved freewheels
- The FR-4 has 20 splines and is approximately 21.6mm in diameter
- Center bore for axle clearance is 10 mm
- Always use a skewer or axle nut to hold tool firmly in place during removal
NOTE: To determine your cassette / freewheel type and the appropriate tool for it, please see the Instructional Videos section.
Determining Cassette/Freewheel Type & Tool "Do I have a cassette or a freewheel?" This video gives the answer. It also helps determine which tool is needed for removal and installation.