Park Tool Retaining Ring Spanner HCW-5 Two-Sided

Double-sided bottom bracket lockring hook spanner. One side features a single hook, while the other side is equipped with a hook spanner that has 3 notches for enhanced engagement with lockrings. The three-hook end is compatible with 3-notch lockrings that have a maximum outside diameter of 46 mm and a minor diameter (in the notches) of 40 mm.

The Park Tool HCW-5 is a double-ended wrench specifically designed to fit lockrings found on cup-and-cone bicycle bottom brackets. One side has a single hook, and the other side includes 3 notches for improved engagement with lockrings. It is heat-treated and nickel plated to ensure a lifetime of reliable use.

HCW-5 Features
The universal single hook end fits most notched lockrings with an outer diameter ranging from 43 to 46 mm.
The three-hook end accommodates 3-notch lockrings with a maximum outside diameter of 46 mm and a minor diameter (in the notches) of 40 mm.
NOTE: The HCW-5 is intended for bottom bracket lockrings. For fixed gear lockrings, please use the HCW-17.