I'm currently running a Regina 520 Drag Chain and I've had good luck with it last year. It doesn't see a ton of street miles anymore, maybe saw 600 miles last year and most of those were going out to do highway pulls lol, but I had barely had any stretch and no tight spots in it. I did lube it before each track day and usually tried to lube it before riding it out to do pulls on the street but I know I sometimes forgot.
I used to run a 525 EK MVXZ and my chain and my chain maintenance wasn't as good with that and started getting tight spots in that chain.
I also run aluminum sprockets now too and aluminum sprocket nuts and that helped save a good bit of weight.
You might have to buy a chain every year if you see a lot of street miles with the regina chain as it has no o-rings but they are a pretty cheap chain.
I used to run a 525 EK MVXZ and my chain and my chain maintenance wasn't as good with that and started getting tight spots in that chain.
I also run aluminum sprockets now too and aluminum sprocket nuts and that helped save a good bit of weight.
You might have to buy a chain every year if you see a lot of street miles with the regina chain as it has no o-rings but they are a pretty cheap chain.
