Wow, Good answer chap!
Still got my baggies, dangerous to walk in!
Well the back shop owner (The Hair Team) in Hebden bridge told us BMX was 'coming back', that must have been about 92, at the time it seemed hard to believe, I was thinking "well I'm not sure if to believe him, but I sure hope they do" being a bit of a retro fan even age 14/15 whatever I was.
Not long after that 'Cycle Gear' in Halifax Had a disjoined window of the shop devoted to some BMX's, GT's and Dyno's and Redline possibly Mongoose or similar. It was all a bit 'Waynes World'!
They were very 80's looking really skinny classic double diamond frames or platform freestyler type with Gyro, calliper brakes, skinny tubes and seatposts, chrome, and some had 90's textured paint jobs. My mate and I had been through a couple old skool BMX's during our MTBing, nowt special, I had an Ammaco freestyler, but when cash flow allowed it 93 We bought a new redline and a dyno, entry level clunkers.
It was easy to bend axles and skinny dropouts so I remember these getting customised and gussets being chucked in and stuff as Perry mentions. My mate got a beefed up GT from a specialist shop pre modded. It was a beast. The leading companies were building these features in IIRC and upto like 2000 (i was out of it by then) beefy and heavy was the way, the bikes seemed to get simpler and less brakes! Its really surprised me with recent research. It is about lower weight again, with the tricks these guys are busting out these days it makes sense that they need a no nonsense performance bike like other atheletes.