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the new pinch bolt version of the TRSr cassette (2018) is only held onto the freehub by a pinch bolt that clamps the larger 1/2 of the cassette around the smooth part of the XD driver, held on only by friction. this clamping surface is only about 4mm wide where it actually clamps around the freehub body. it does not have a lockring to permanently and securely lock it onto the freehub, unlike almost every other cassette out there. installed perfectly according to e13 tech doc, but the cassette slid laterally on the freehub body to the drive side hitting...