Chris King ThreadFit 24 Fit Kits

The Chris King ThreadFit 24 bottom bracket requires the use of a Fit Kit matching the type of crankset you have for installation. Fit Kit #4 is compatible with Sugino 75 Direct Drive, Andel Deluxe and other Hollowtech II-type cranksets with a straight 24mm axle. Fit Kit #6 is compatible with Sram Omnium, Sram S300, Alpina Track, which have a 24mm/22mm axle.   Professional installation is strongly recommended for all Chris King products. Specifications • made in USA • only for use with Chris King ThreadFit 24 bottom brackets installation instructions Installing a Hollowtech II-style crankset with Fit Kit #4 is pretty straightforward and easy. However, when installing Sram Omnium using Fit Kit #6, using the correct combination of spindle spacers in conjunction with the spindle sleeves and disc spring is 100% crucial. You will need patience and an accurate digital caliper to get this right. Chris King Fit Kit Installation Manual