<p><strong>ThreadFit™ 30 bottom bracket is designed and built to bedurable, serviceable, and silent. Manufactured to create a precise andfunctional interface between your frame’s bottom bracket shell and yourcranks to ensure that your cranks will spin lightly and withoutinterference. King has has developed a range of conversion kits (search bar for conversion kit) that allowour ThreadFit™ 24 to be used with a wide selection of road and mountainbike cranks.</strong></p><strong></strong><p></p><ul> <li>Engineered, manufactured and assembled in Portland, Oregon USA</li> <li>5-year built-to-last <a href="https://www.chrisking.com/product/support/warranty/">warranty</a></li> <li>Legendary made-in-house bearings</li> <li>Available in 9 beautifully anodized colors</li> <li>Responsibly lightweight</li> <li>Easily serviceable with our integrated grease injection system</li> <li>Find your fit with our required conversion kits</li> <li>Ceramic bearing upgrade available</li></ul>