Just took my bike out for a ride yesterday after having installed an all new drivetrain, and it sounds like a buzzsaw. Anyone else have problems with soma cogs or s300 cranks doing this?

New chain too, right? I had an old stretched one do this on new cogs and rings. If it is new, is it it too tight?

Yeah it's new and no it's not too tight, nor is it too loose. I keep a tiny amount of slack in my chain. I cleaned off the factory lube with chain brite (smells so good) and re-lubed with finish line ceramic before taking it on the road.

I'm stumped on one of mine too. All new drivetrain and it's pretty noisy. My other fixed is silent.
I chalked it up to a noisy chainring- can't think of anything else it could be- happens with load. Just spinning it is fairly silent

My S300 chainring is louder than the Eighthinch one I had, but definitely not too loud. Could be the cog, I found that my Dura Ace cog was pretty loud.

I find the black Soma cogs to be the second quietest I've ever used (the quietest is an EAI Superstar). Angie's S300s with a K710SL chain and Soma cog is ridiculously silent. Brand new drivetrain stuff is always a little louder than when it wears in a little.

More riding, less worrying.

qft.

Mine's the chrome finish, fwiw, but that was the first thing I thought - maybe I've just gotta break it in. Thanks for the responses dudes.

loosen the chain.

that was a bad idea

factory lubing is the best out there.

No it isn't. As I've said numerous times before, the factory "lube" on most chains is only present to keep chains from forming surface corrosion while inside the packaging. No one wants to open a brand new chain and find surface rust.

You don't have to go crazy scrubbing it all off but I've found it's always a good idea to replace it with a quality wet lube.

Did you completely wash out the chain and then let the new lube penetrate, or just quickly lube and ride? It is possible you may have applied lube but acted hastily and pretty much rode on a dry chain.

Factory izumi lube is horrible.

It's an Izumi chain, I had the same chain before and didn't replace the factory lube right away. I can definitely attest to how much it blows. I let the lube soak overnight actually. And Adriano, the tension is fine

Hmmm the lube KMC applies to their chains is heavy & applied generously enough to be lube IMO...

I'm with you on this one, the 710SL comes with an oil that to me seems like lube. Might not be a good one, I don't have a lot of knowledge on chain lubes. The only one I've used to this day is the Finish Line all in one, it cleans and lube.

Is it an 1/8" chain?
Unsure if a multigear chain would even work, but I'm sure the drive train would not be happy.

True, but it dries out really quickly.

factory gunk is terrible.

+1

A new drivetrain will be noisy until you break it in. This is normal.

And, yes, the K710 and K710SL chains are really quiet. It's the quietest chain that I've ever used...including the Izumi ECO and V Super Toughness.

When I installed all new Sugino Zen with Phil Wood cog and HKK Vertex chain it was Loud. But its noise dying down. This **** takes time peopl!

Phil Wood cogs are stupid loud. I hate those damn cogs.

But they look so damn gooood!