My tensioner sure does seem to be wiggling a lot ;)

[speedub.nate]

 

[Base]

Rotor chainring?

 

[JustSomeGuy]

Haha, that does look like quite a bit of movement!

 

[PedalUma]

I would replace the chain after cooking the new one in a crockpot of wax. It looks like a single speed. If it is, how about a half-link chain that is super strong? Also some jockey/tensioner wheels are narrow/wide. See if that is the case and if it is off by one cog.

 

[speedub.nate]

Rotor chainring?

Are you asking whether the chainring is oval? No, round.

Haha, that does look like quite a bit of movement!

It's not a ton of movement, but everything here is new – so more movement than I expected to see.

...some jockey/tensioner wheels are narrow/wide. See if that is the case and if it is off by one cog.

They're basic jockey wheels, so that's not it. It's a generic tensioner off Amazon, but I doubt it's somehow responsible for the wiggle. I'll rotate the chainring's position on the spider by a quarter turn and see if that changes anything.

On the other hand, ain't nothing wrong if my tensioner wants to boogie a little while I ride! It's not quite ready for the road, still finishing the build and awaiting a few more parts.

 

[PedalUma]

It looks to me like you could try lubing the chain. When some links are tight tensioners do that.