Shimano BB-UN300 Square Type Bottom Bracket 68x127.5mm

Get the Shimano Tourney TX800 square bottom bracket with cartridge bearings. It offers top - notch quality and performance. Ideal for 68mm bottom bracket shells, featuring a 127.5mm axle length.

Using this Shimano bottom bracket is easy. First, make sure your bike has a 68mm bottom bracket shell. Then, install the bottom bracket with the 127.5mm axle into the shell. When riding, avoid extreme impacts that could damage the cartridge bearings. For maintenance, clean it regularly with a mild bike cleaner and dry it thoroughly. Lubricate the moving parts every few months to keep it running smoothly.