so how do i find what size no let be redoe that i want to put forks on it .im going to strip the blue chop an install all the good stuff from the blue bike .its a stock bike with a hard tail kit and i want the black frame so back to my prob should i just cut a stock neck and install it on the black bike .here in califorina we can only build one new construction frame in r life time .dont know eney words would help