Shimano BB-UN300 Square Type Bottom Bracket 68x115mm

Experience top - notch quality and performance with this Shimano Tourney TX800 series square bottom bracket. It features cartridge bearings and is a perfect fit for 68mm bottom bracket shells, with an axle length of 115mm.

Using this Shimano bottom bracket is easy. First, make sure your bike has a 68mm bottom bracket shell. Then, carefully install the bottom bracket into the shell. When installing, ensure it's centered and tightened properly. For day - to - day use, keep it clean and dry. Avoid riding in extremely muddy or wet conditions if possible. Regularly check the tightness of the bearings. If you notice any unusual noises or looseness, it might be time to give it a quick inspection. You can use a mild lubricant on the moving parts every few months to keep it running smoothly.