Park Tool Bottom Bracket Tool HCW-11 - 16mm/5x23mm

The HCW-11 fits "slotted" bottom bracket adjusting cups and cups with "raised" 16mm wrench flats. These are common on older English bicycles and more affordable models. The opposite end features two ears that are 23mm wide and approximately 5mm thick.

The HCW-11 is a double-ended wrench designed to accommodate two common fittings found on adjustable cup-and-cone bottom brackets. One end is compatible with the raised 16mm wrench flats typically found on adjusting cups, while the opposite end boasts two prongs approximately 23mm apart (center-to-center) for cups with recessed slots. These fittings are prevalent on older bicycles and budget-friendly options, including department store bikes. Heat-treated and nickel-plated, this tool is built for a lifetime of reliable use.