My bmx started making a strange tick noise when you pedal, I haven't heard it before so I regressed the cranks but the sound is still there, I know it's not the pedals because I tried different ones and the noise continued, what could it be?
If it is a sort of "creak" noise, tighten the bolts on your cranks all the way. If it's is a quiet "click" then check if your drive train is lined up properly. The chain is supposed to be quite strait running from the sprocket to the rear cog. Idk tho
It's your headset. Check to see it it's loose. I had this same problem and I though it was my brake cable hitting my frame and then I thought it was my drive train but it was a loose headset. It could be dry or worn out too but probably just loose.