Tell us what's special about them?
Man...how much time do you have??
The top one is the RC30. It is legendary. The bike was based on the RVF750, which was Honda's exotic factory race bike. This was in an era (1987) when there really were no true sport bikes as we know them today...small, compact, lightweight, powerful, exotic. Sure there were a few sportbikes..Ninjas and the Honda Hurricanes and the veneragble GSXR750, but this was the first real factory "special" truly meant for racing. And it had a price to match..$15,000. Cherry ones go for $25K+ today. I had a chance to buy one, but like a moron I passed because I had Yamaha's exotic racebike...the FZR750 OWO1. Some goodies included a fantastic V4 engine that spun up to 12,000 RPM. It had titanium connecting rods..unheard of then..and pretty much still unheard of. Cams were gear driven and you could hear them whine. Even today, this bike is small by sportbike standards. It's closer to the size of a 400 or 500. I love this bike more than any other I think.
Here's an amazing assembly video of the RC
http://www.youtube.com/watch?v=PFvwymR9U0oThe bottom one is the end of an era. In the mid-80s, 2 stroke sport bikes were THE bikes to have. It's what was being raced in Grand Prix at the time. They were unruly, extremely light, difficult to ride and had extremely peaky power. These are the race bikes I grew up riding, and without question they made me a better rider because of it. The power bands were only about 3,500RPM long...nothing, nothing, nothing then BAM all 60 RWHP. Now 60 HP doesn't sound like much..but the bike only weighed 130 kilos. The NSR250 MC28 picture is the last of these (1996). It's a V-Twin 2 stroke, dry clutch (you can hear the clutch rattle like mad!), and PGM ignition..which was a 3D ignition map. Love these....and had bought one last year, but because the wood crate wasn't certified because of the tsunami, Canada Customs wouldn't let it into the country...and they turned it around. I may try again next year..
Here's what they sound like
http://www.youtube.com/watch?v=_Tq3NsRe5HA