CYCLUS TOOLS POWER.TOOL – Double-sided lever tool for assembly and disassembly Z4 29.5 / Z4 19.0

The POWER.TOOL is suitable for assembling and disassembling the following lock nuts, for example:

• Z4 29.5 (external gear) – BMX freewheel sprocket, 16 mm axle


• Z4 19.0 (external teeth) – BMX freewheel sprocket, 10 mm axle

Why choose POWER.TOOL

• Fits multiple applications on the bicycle


• A long, rubberized lever ensures maximum pressure and ease of tightening when fastening or loosening components


• The partially double-sided tool head reduces cost and optimizes tool inventory


• High-quality materials, as expected from CYCLUS TOOLS tools

How to find the right tool for your application

First, check the component or lock ring to determine whether it requires an internal or external mounting tool. Count the number of notches or recesses in the cup or ring, and check for any pins. Measure the smallest outer diameter for external cups or shells, or the largest diameter for internal rings. Use our handy template as a reference guide.

Found the correct key size (index)? Check the overview of the tool selection that CYCLUS TOOLS offers to solve your problem. Visit our online shop: https://shop.ra-co.com/

Important information about using your tool

Assess the area around your work site: additional disassembly work may be required. The manufacturer may have manufacturing tolerances that can cause your POWER.TOOL to fit slightly tighter or looser on the component in question. Before attempting disassembly or assembly, verify that the tool fits precisely into/onto the part – use only the correct tool to avoid damaging components.