Shimano BB-UN300 68x113mm Square Type MTB Bottom Bracket

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Shimano Tourney BB The BB-UN300 is part of the Shimano Tourney A070 line of products. The bottom bracket is a square type BB - MTB - Standard structure. Using Shimano's quality cartridge bearings to ensure smooth and consistent use.
• Square type BB • BB-UN300 • Size: 68 x 113mm • Adapter material: Aluminium • Does not come with foxing bolts