
These conversion cups make a mid-BB fit any old school USA BB shell.
FEATURES
• Fits any Old School BMX frame with an American BB
• Converts American BB to Mid BB
• Mid bearings press directly into these cups
• CNC Machined 7000 series aluminum
FEATURES
• Fits any Old School BMX frame with an American BB
• Converts American BB to Mid BB
• Mid bearings press directly into these cups
• CNC Machined 7000 series aluminum