It is also can be a little tricky putting it back on making sure the rubber seal doesn't interfere with the hubs, made harder with the cassette on the way.
If not seated properly, then the chain will start skipping due to the slack not being taken up by the freehubs.
Fair - I've only broken spokes when I've been fat riding on crap wheels. Neither which will be the case for the tcr.
@mdcc_tester yes - that's what I meant. Any other examples of hubs like that?