ZTTO Bike ISIS Bottom Bracket 124.5mm 127.5mm BSA68 Bicycle BB for Small Wheel BB101A

Description

The bottom bracket is solid and durable with a long service time. Please choose the bottom bracket you need, and use BB tool to screw into frame for safety. The surface made by the great technology , makes it hard to rust and provides a long service life. And the surface of black and gold has a fine appearance and will give you a luxurious feel.