Originally Posted by
Bikerider007
I recall frames not having the gusset cracking at the head tube, but my memory could be of cheaper frames. Well, that and the early aluminum stuff (PK, JMC) or crazy form over function stuff (CW Phaze). I would think the tall head tube was needed to be a little longer to get that slack angle for downhill geometry, but that's just my guess. Although they made multiple sizes I did not get why they made them so tall. I can't imagine falling from those if riding seriously but I also think in terms of bmx. As downhill bikes it may not have mattered as much. Or maybe it was influence from the tall road frames of the 70's.
I do really like the mid 80s and earlier MTBs now and have several. Many have some nice BMX touches and parts.
My understanding is a frame when you land the frame needs to flex and absorb the shock. So a gusset instead of strengthening the joint makes the joint far more ridged causing it to snap under high stress instead of flexing and absorbing the energy. At least that's that theory, but like you say many non-gusset frames still broke at the head tube.
Maybe the moosegoose story is one of those 80's BMX urban legends like sticking your skyway wheels in the freezer lol. I can't help to feel like they were more trying to make a bike that would appeal more to adults. It would be interesting though to find out if they really had any connection with the scooters.