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Shimano Standard Square Type Bottom Bracket  BB-UN300
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Shimano
Standard Square Type Bottom Bracket BB-UN300

Mfg PartNum:
63
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The Shimano Standard Square Type Bottom Bracket is part of the Shimano Tourney TX800 Series and offers quality and performance for JIS square-taper cranksets.

  • 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

  • B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

    68mm x 107mm

    Mfg PartNum: EBBUN300B07X 

    68mm x 115mm

    Mfg PartNum: EBBUN300B15B 

    68mm x 122.5mm

    Mfg PartNum: EBBUN300B22X 

    73mm x 118mm

    Mfg PartNum: EBBUN300C18X 

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