The Cane Creek Crank Preloader is designed to replace the plastic preload on your current crankset. Preloader is equipped with an aluminum preload ring, an aluminum inner thread ring, and a titanium 2.5mm hex fastening bolt. Cane Creek eeWings Preload Collar Includes 7075 Aluminum thread ring 7075 Aluminum preload spacer adjuster Grade 5 Titanium 2.5mm hex fastening bolt Compatibility The Cane Creek eeWings Preload Collar is compatible with the following spindles: Cane Creek eeWings 30mm Raceface 30mm SRAM 30mm SRAM DUB 28.99mm Use silver thread ring for DUB cranks. Use gold thread ring for 30mm cranks (included)