Park Tool HCW-11 Adjustable Cup Wrench Default:Default these heel studs cater to

these heel studs cater to a wide range of cyclists

Mineral Oil System: Uses Shimano mineral oil for reduced maintenance and long-term reliability

ensuring smooth and secure rides across challenging terrains

Hub Drilling: 36 spokes

compatible with 10-44T and 10-36T cassettes

Park Tool HCW-11 Adjustable Cup Wrench Default:Default these heel studs cater toHCW Series Bottom Braket Tools Key Features HCW 11 fits "slotted" bottom bracket adjusting cups and cups with raised 16mm wrench flats These are common on older English bicycles, and less expensive bicycles Opposite end has two ears that are 23mm wide and approximately 5mm wide