opinions..
Cars last, what, 200k without needing a rebore.
They spin up to ~6-7k RPMs.
Bikes spin to 16k+.
That means that the bikes are scraping the compression rings agains the cylinder walls over twice as much as cars. There is no more basic wear and tear on a motor than the metal(alloy?) ring scraping the cylinder wall. Revving kills motors. So do other factors, but when you get right down to it, more revving means more movement which means a shorter lifespan.
Sure, things like stroke make a lot of difference, but you're still causing parts to move even if you've got a lil tiny stroke like sportbikes do.
They spin up to ~6-7k RPMs.
Bikes spin to 16k+.
That means that the bikes are scraping the compression rings agains the cylinder walls over twice as much as cars. There is no more basic wear and tear on a motor than the metal(alloy?) ring scraping the cylinder wall. Revving kills motors. So do other factors, but when you get right down to it, more revving means more movement which means a shorter lifespan.
Sure, things like stroke make a lot of difference, but you're still causing parts to move even if you've got a lil tiny stroke like sportbikes do.
but older honda's still look good(95 900rr's) and i've seen a few clean 97ish blue zx9's that still looked good next to todays bikes.
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haha when i mentioned the 97 bike..i was just throwing out something random that i have no clue about...
i know some people know things about certain generations of bikes that might of had an issue to look out for or to avoid..
i know some people know things about certain generations of bikes that might of had an issue to look out for or to avoid..
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Shut up, this is now a vintage sportbike thread. Go cry to morty if you have a problem with that.




