Bicycle BMX MTB Bottom Bracket Bearing Cup Shell

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  • Regular price £1.29
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  • Item in excellent condition, no evidence of used.
  • The cup pressed into the frame
  • Material: steel
  • Weight: 10g
A - Hole diameter;
B - Inside shell diameter;
C - Outer diameter 
        1. Grey colour shell: A= 23mm; B=31.5mm; C=40mm
        2. Large black/silver shell: A=39.5mm; B=46mm; C=51.5mm