SUP - Soudé Usiné Process: The rim joint is welded and then milled.
Benefits: The strength of the joint is equal to 90% (60% for a pin-jointed rim) of the strength of the rest of the rim. This makes wheel building and balancing that bit easier and results in a wheel that does not shudder when braking.
Process: After bending, the rim joint is arc welded. The welded seam is then milled for a smooth finish.

UB CONTROL - Usiné Brut: The braking surfaces are milled to improve braking efficiency

Benefits: Perfectly parallel braking surfaces with brake pads in direct contact with the aluminum.
Process: After assembly and anodization, the sidewalls of the rim are milled with a diamond point on a digitally controlled machine. This gives a predictable braking surface.

CD - Couche Dure: An anodization process that forms a micro-hardness on the surface of the rim.
Benefits: Improves the aluminium to slow down wear from the brakes. This process also makes the rim easier to build into a balanced wheel.
Process: The braking surfaces are milled using the UB Control process, then given the dark anodised coating.