Material: The adapter ring is made of aluminum alloy CNC process, anodized, It does not break or slip like plastic.
If you have FC-32 wrench in your hand, then you can use the wrench in your hand to match our adapter ring to disassemble the FC-24 and FC-25 bottom bracket.
DUB: 24-notch bearing cups fits with an outside diameter of 46mm (SRAM DUB BSA BB)