Asymmetric rims, sometimes called offset rims, improve rigidity, strength, and reliability by reducing the difference in spoke tensions on different sides of the wheel. How does this work?
EQUIALIZE SPOKE TENSIONS
Offset rims allow us to balance the spoke tensions on either side of the wheel. This balance of the tensions means that some spokes aren't taking more strain than others, meaning the forces through the wheel are more equally shared, and the result is a stronger, more reliable wheel.