Swiss Side announces a new wheel series that would violate a recent UCI regulation limiting rim depth to 65mm set to take effect in January 2026. This rule threatens the legality of Swiss Side's 68mm Hadron Ultimate 680 wheel, which they claim significantly outperforms shallower alternatives. The brand argues that the UCI's claims linking deeper rims to instability in crosswinds lack empirical support. Swiss Side has released wind tunnel data to compare their new product with currently approved 50-60mm wheels, underscoring their stance against the UCI's rationale for the new regulation.
Swiss Side presents wind tunnel test results showing that their 68mm Hadron Ultimate performs better than several 50-60mm wheels; they contest UCI's rationale on rim depth stability.
The new UCI rim depth rule limits maximum rim depth to 65mm starting January 2026, which directly bans Swiss Side's newly launched 68mm Hadron Ultimate 680.
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