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@gbj_tester
Heavy and flexy like all square taper BBs, plus it's got no flange on the drive side cup so they tend to come undone, as the locking relies on the smaller diameter of the cup/cartridge interface. Also uses a shit tool interface whose shallow splines were designed for cassette lock rings not BB cups, which would be less of an issue if the cups weren't made of cheese. The bearing and seal quality isn't all that either, very much built to price specification (about $1 f.o.b. Taichung, by the look of it) rather than a quality specification.