Frame sizes

[hoggo45]

What Frame size are mini bikes/Pitbikes ect based on ?

I throught it was a Honda CRF 50

But I am seeing some bikes Like the DHZ DPO 140 saying its a CRF 70

And some mid size bikes, talk about KLX 110 size frame.

So what frames are Pit Bikes based on ?

I have a Atomic Nitrous 140 Is it a CRF 50 Frame ?

I also have a Atomic Reign 160 Bigfoot, What size frame is it ?

regards and thank you

Frame size is starting to confuse me

 

[sean01]

when pit bikes were first brought out they were all based on nearly 1:1 copy of the crf50 frame.

now there all there own design with probly only one thing in common.. the plastics