ITEM NAME:Tool Remover Cassette Removal Lockring Freewheel Repair Flywheel Bicycle Bike Description&Preview.Flywheel Disassemble and Install tool, with 12 teeth, The Lockring tool needs to be worked with 24mm wrench. 1x Bike Flywheel Remover Tool. Can be used to disassemble bike flywheel. No Installation Instruction.