I may be doing a subframe swap to my f2 and i need to know if the f4 subframes are aluminum or not?

 

from what im being told there all steal main frame...if that helps

 

well if the main frame is steel i guess i could assume that that the subframe is the same.. i just need to know cause welding aluminum to steel would be a pain in the *** and probably wouldnt hold very well from what im told.

 

the F4 frame and subframe are both aluminum as opposed to F2 where the frame was made of steel tube

 

i was reading and come across that info,,,just type in for you bikes specs and im sure you will get something on it ....