Look real close at that chain, the whole thing was about to go down the crapper. It looks like a matter of what was going to let go first. Pins pulled to the edge, rollers ground off at an angle from abuse, plates twisted. And that's in the few inches we can see.
Get a better brand of chain, maybe? Something that says "Severe Duty" on the package somewhere. (I tried to use emotes but it said there were too many images )
Yeah Dave, that chain is definitely toast! At the last race if I had raced the second heat race, it probably would have failed in the final or the last race of the day after that.
The primary chain wasn't as bad but it's a super HD #35 karting chain and all chains are being replaced today for the race weekend.
That #41 chain is a Tsubaki and is of decent quality made in Taiwan. It just goes to show what 20+ horsepower can do to a chain in a short time, especially when you don't lube it much
The replacement chain is good quality #41 made in Taiwan and the primary is top of the line #35 karting chain.
I think I might change the back tire while I'm at it as this tire has been on for several races and is quite worn, but still working real well.
My thinking is pretty much "if it ain't broke.....don't fix it"......leave well enough alone if things are working great.