Sound when pedalling I have got a new mountain bike(hardtail wtih powerspline bb) and it is on 100 kms. When I push the pedals I hear little sound from the left side. It is only from the left and I think it can be the crank or pedal?! (not sure if it can be the BB as long as I hear it from the left). The sounds comes when the crank is almost in maximum down position. The interesting is that when I go out for a ride the sound/creak comes after 8-10 kms. After that I return home>clean the bike>go out for next ride>it comes again after some kilometres. It is very strange. Is it possible to be something different, like mud from the tires or something like that? I have checked the cranks and I think they are tighten enough to the BB. I am not sure about the pedals, however. Will it help if I apply on them chain dry lube and tighten them? Thank you in advance!

I am happy to tell you that I fixed the problem. Cranks/bb/pedals, everything is good and not worn out. I fixed it with some bike lube. I lubed the place where the pedal goes into the crank with pedal INSERTED in the crank. 60-70 kms later no sound. :)