These were in the dmr trailstar i had.
snapped while i was riding the bike.
Dropped of a kerb, across a road and hopped up other side,
waited for my mate to catch up, when he did i started riding then bang,
the steerer snapped inside the headtube, putting me on my backside in the middle of town.
i never abused or crashed them, may have been a fault in the steerer or the previous owner damaged them.
i sorted the gearing issues i had with the front mech, took the bike to LBS to get a shorter axeled bb fitted.
that partly solved it, had to replace the front mech too as it had way too much play in the cage pivots, got a nos shimano fitted that sorted it and now works a treat.