There is always a chance of an odd bit of grid or a bur in the metal resulting in the noise. It's no big deal and pretty unavoidable to have the odd bike have a noise
tell me about it... got an izumi chain...rrrrrrrrrrrrrttttrtrtrtrtrttrtrtrtrtrtrtr... on the GT annoys the piss out of me. I once had a cheap saddle which made the most annoying noise dropped a bit of lube on the rials and hey presto... silent as me sneaking into dales mums bedroom.
tell me about it... got an izumi chain...rrrrrrrrrrrrrttttrtrtrtrtrttrtrtrtrtrtrtr... on the GT annoys the piss out of me. I once had a cheap saddle which made the most annoying noise dropped a bit of lube on the rials and hey presto... silent as me sneaking into dales mums bedroom.