The Cane Creek preload kit matches the style of the 40 series head set. Weight 27 g.

"Spare derailleur hanger for the UDH standard. Works with derailleurs from all brands that use the standard mounting position. Weight 27 g."

This ISCG 05 adapter is placed under the bottom bracket cup where it engages with the frame interface. The adapter can be used to fit chain ring guards and chain devices that use the ISCG 05 hole pattern. Weight 21 g.

The proven 40 seriens head set by Cane Creek features zinc coated bearings to improve corrosion resistance. These bearings take a moment to run in. Head set spec is IS41/IS52. Top stack height 9 mm. Bottom stack height 1 mm. Weight 76 g.