The Race Face Bottom Bracket Cinch PF30 is designed to fit 83mm shell widths and 30mm inner diameters, making it an ideal choice for a variety of cycling disciplines including XC, Enduro, and DH. Featuring precision CNC machined aluminum alloy cups, this bottom bracket ensures a high tolerance fit and enhanced performance. The external bearing design provides a wider stance for improved stiffness, while the factory-filled Phil Wood grease ensures smooth operation. Weighing just 106 grams, it is lightweight yet robust, making it a reliable component for serious cyclists looking to optimize their bike's performance.