Shimano BB-UN300 68x113mm Square Type MTB Bottom Bracket
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
• Size: 68 x 113mm
• Adapter material: Aluminium
• Does not come with foxing bolts