Description

Shimano UN300 Bottom Bracket Square Taper

  • SHIMANO quality/performance cartridge bearing square bottom bracket
  • Better chainline stability with chain line stabilizer
  • 3 structures available
  • Standard, E-type, chain case options
  • Adapter material: Aluminum
  • 68 & 73 Shell Available
  • size chest(in.) waist(in.) hips(in.)
    XS 34-36 27-29 34.5-36.5
    S 36-38 29-31 36.5-38.5
    M 38-40 31-33 38.5-40.5
    L 40-42 33-36 40.5-43.5
    XL 42-45 36-40 43.5-47.5
    XXL 45-48 40-44 47.5-51.5

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