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New sprocket = new chain.
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I've been running my entire drivetrain from new (EAI 18t Gold Medal Pro, Izumi Supertough, Zen*) and it's been fine and dandy and quiet as a mouse since day 1.
So how long have you been riding that set-up for?
The language give me the implication that your drivetrain have only been fitted a couple weeks ago.
umop3pisdn
edscoble
@MechaMorgan
Right, help me out with this. It makes sense in my head but I'd like more informed people than I to confirm/deny.
I've been running my entire drivetrain from new (EAI 18t Gold Medal Pro, Izumi Supertough, Zen*) and it's been fine and dandy and quiet as a mouse since day 1. However, I recently got hold of a Phil Wood 19t. After fitting the cog, it was making a horrendous grinding noise when I was out of the saddle or putting power down.
Now I initially thought it was a chain-line thing, as the Phil cog was 1.4mm thinner than the EAI. After spacing it out, the noise remains. After a bit of testing, it seems that the noise happens whenever I use any cog which ISN'T the 18t EAI. I got an older Supertough out, and it's not making a noise on the 19t cog.
So - my chain has just bedded in on this 18t cog, and will eventually bed down on any other cogs I use, right? This makes sense in my brain. Should I a) just ride through it b) keep the chain for the cog it's used to c) other.
p.s. the older Supertough is very gold but quite dull, but the newer one is much shinier, and has lost much of it's goldness. What's that all about? Both owned from new.
*I know, I know, first world problems.