ES51 68 x 113mm Octalink V2 Spline English Bottom Bracket

This is a high - quality Shimano ES51 English bottom bracket with an Octalink V2 spline. It's 68mm wide and has a 113mm spindle length. Specifically designed to fit Shimano Octalink V2 spline cranksets, it offers a reliable connection for your bike's drivetrain. Note that crankarm fixing bolts are not included. The bottom bracket shell has an inner diameter of 1.37 inches, and it weighs 270 grams. Its color is sleek black, adding a stylish look to your bike.

Using this Shimano bottom bracket is easy. First, make sure your bike frame has the right specifications to fit it - the bottom bracket shell should be 68mm wide and have an inner diameter of 1.37 inches. Then, carefully install it into the frame. Since the crankarm fixing bolts aren't included, you'll need to use your own or get a suitable set. When riding, this bottom bracket will provide a smooth and stable performance. As for maintenance, keep it clean. After riding in wet or muddy conditions, wipe it dry to prevent rust. Periodically, check for any signs of wear or looseness. If you notice any problems, it's best to get it checked or replaced to keep your bike running well.