Maxmartt Bicycle Bottom Bracket,Quare Hole Axis Bike Parts for Square Tapered Spindle Crank (68x113mm)

Features

• crankset with bottom bracket The bottom bracket is solid and durable with a long service time.
• sealed bottom bracket square taper The steel shell can absorb roundness tolerance for installing ports of Bracket Bottom.
• 68 x 113 bottom bracket Integrated System can protect the frame, more power output, it's better than ordinary structure bottom bracket.
• sealed bottom bracket 68mm Suitable for 68mm frame shell.
• taper bottom bracket Please use the BB tool to install and replace the bottom bracket for safety.