The HCW-11 fits slotted bottom bracket adjusting cups common on older English bicycles and less expensive bicycles with raised 16mm wrench flats.
The opposite end has two prongs that are approximately 23mm x 5mm for cups with recessed slots.
. HCW-11 fits “slotted” bottom bracket adjusting cups and cups with raised 16mm wrench flats. Common BB’s on older English bicycles, and less expensive bicycles. Opposite end has two ears that are 23mm wide and approximately 5mm wide. Manufacturer’s Part No: HCW-11
