Tool Precisely engages the 16 notches of the the extermail bearing cups. Small Plastic tool engages the 8 internal splines of the crank arm.
Adjustment cap for easy removal or installation.

New Wrench SJ-1823A-bike tools
Tool Precisely engages the 16 notches of the the extermail bearing cups. Small Plastic tool engages the 8 internal splines of the crank arm.





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