IRD QB-75 Bottom Bracket
| 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.