I get an audible clunk that I can feel in my feet while pedaling. Takes a few kilometers of riding before it starts.
Everthing is tight. What do you reckon it is?
Issue may be with pedals perhaps? Or chainring bolts? Or lower suspension linkage? Chainring / cassette / chain condition OK? Are your BB bearings in good shape?
Just throwing more options out there. For me, more often than not, I end up finding out that creaks & clunks are rarely actually where I am initially conviced they are coming from. It's some kind of David Blaine trick my bikes do to me to mess with my head...