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Technical FAQ: Installing Campagnolo cassettes

Because of the Xentis freehub’s design, the Campy cog will not slide on in any position other than the correct one. This is the closest you can get to incorrect installation (the freehub body is rotated forward 30 degrees relative to the narrow stepped tab under the “16A” and “CAMPAGNOLO” stamps), but, unlike the Zipp or PowerTap freehub bodies in prior photos, the next rail on the freehub body, counterclockwise from the stepped rail is too tall, wide, and squared-off for the low step on the cog to slide over. Photo: Lennard Zinn |