IRD QB-75 Bottom Bracket

53.99 53.99 USD


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Width: 68mm BB width

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– Aluminum cups and aluminum sleeve 

– English Threads 

– JIS square taper CrMo spindle 

– Sealed cartridge bearings

– Average weight: 245g

– Made in Japan

If you plan to swap in IRD Italian/French conversion cups, it is more economical to buy the QB-55, than the QB-75.