The lightest bmx bike is owned by Samuel Powell. His bike ways 18.3 pounds and is built custom from the ground up. It totalled to about $2,300.
The lightest bike for adults is probably a redline or a hyper but hypers are kind of expensive
i dont think anyone knows who has the lightest bike but i think the lightest stock bike is the KHE specter and its 8.35 kg http://www.flatlandaustralia.com/forums/viewtopic.php?f=1&t=2008 Copy and paste link Lightest so far is 6.7kg (14.7 pounds) with custom made parts as well. It even has 4 pegs!!!!
A dirt racing bmx bike is the lightest....If you are looking for type, then maybe haro, dk, redlines are light but I don't recommend redlines, its kind of a feel type thing.the lightest bike ever is KHE (brand) but really good light bikes are sunday and untied and redlines arnt bad at all theyre are the prefered bike of the DewTour and xgames
probably the haro prolite, I'm warning you they are about 800 to 900 bucks Canadian
you can find a BMX bike in halfords
The bmx thruster rampage bike is a exellent bike
One can buy a custom BMX bike in Las Vegas from a few stores. One can get a BMX custom made from 'Just BMX', 'Bolder BMX', 'Bike World' and 'Vegas Bike Store'.
A hyper is better
no but you can get a dirt bike or a cruiser bike or a speed bike but i havnt seen a bmx bike yet.
The type of bike that is mostly used form BMX riding are the purpose-built BMX bikes.
A street bike is a type of BMX bike, so your question can't be answered.