My bike is being abit of a shitter at the moment! theres a weird cracking sound from my BB when i put pressure on the pedals aka gaping/pedaling ( sounds like when your BB is about to go ) so i swapped my SKF BB to my old Echo External but it still makes a weird cracking sound! BUT! it dont do it all the time just when it feels like it! i thought it could be my rear Hope pro 2 or a crack in the frame! the Hub feels fine when im rolling and when im hopping on the spot not long had the hub! and i have checked for cracks and i cant see any! so i have ran out of ideas what it could be! if you could help me out that would be great!