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Aluminum cups and Sugino's proprietary not-quite-Shimnao taper profile make this a must have for Sugino square taper crank owners. 103mm narrow width for track bikes.
Sealed bearing cartridge bottom bracket for Messenger series, alloy cup and alloy sleeve, lightweight
Axle Length : 103mm (CroMoly)
Axle Type : 4-taper (SG Mighty taper)*
Cup Thread : BC1.37x24T
BB shell width : 68mm
Cup Material : Aluminum alloy
*Axle bolts are not included.
*SG Mighty taper is not compatible with SG75 taper.
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