I put a new chain on my singlespeed last week (after not riding it at all over the summer). Now its making a right racket when I'm stood up and pedaling (kind of a clanking sound)
my feeling is its either
a - I need a new bottom bracket
b- I need a new chairing and/ or sprocket (I have had them on there since the bike was built and this is my third or fourth chain - I check for chain stretch on my geared bikes but never on my SS)
any ideas on whats most likely so I know what to try first?

