BB-UN300 Bottom Bracket - English 68 x 118mm Spindle Square Taper JIS

The Shimano BB-UN300 is a high - quality English bottom bracket designed for JIS square - taper cranksets. It features a 68mm bottom bracket shell width and a 118mm hollow square taper JIS spindle. The crankarm fixing bolts are sold separately. This bottom bracket comes in a sleek black color, offering both style and functionality for your bike.

Using this Shimano BB - UN300 bottom bracket is easy. First, make sure your bike has a compatible JIS square - taper crankset. Install the bottom bracket into the 68mm bottom bracket shell of your bike frame. Remember, the crankarm fixing bolts are sold separately, so you'll need to attach them yourself. When it comes to maintenance, keep it clean. Regularly wipe it down with a dry cloth to remove dirt and debris. If you notice any unusual noises or looseness, check the installation and tighten the parts as needed. Store it in a dry place when not in use to prevent rusting.