Std exhaust silencer weight

[His Dudeness]

Another thing i noticed as well recently is how much freer the chain feels after switching from chain lube, which i've used for decades, to using engine oil instead.
It's very noticeable, especially how each individual link appears totally unrestricted in movement.

Yeah I've noticed that too. I think the oil gradually washes off whereas the sticky spray lube gets full of dirt and grit. I switched to gear oil years ago because the cans of spray lube are a rip off for the amount of applications you get out of them. For the same price you can get a 1lt bottle of gear oil that will last a life time if all you're doing with it is lubing chains. You do have to apply it more regularly than the spray lube though. And only apply a small amount to avoid fling. I brush it on with a tooth brush.