There are several types of wheel locks:
Sleeved rim: A piece, called a sleeve, is slid inside the rim profile to ensure the hoop is closed. This technique is the lightest.
The pinned rim: This method consists of using two inserts similar to mechanical pins (mostly steel) which are inserted inside the rim profile, in both channels, to create a closing link.
The majority of Mach1 rims are pinned. However, in recent years Mach1 has developed a real expertise in the use of pinned rims for higher end products. This solution has been translated into the Mach1 Light Technology.
The welded rim: For this closing solution, a special insert is used and functions as an alignment, the welding operation is then performed. This technique is not used by Mach1.