Well, I put 70,000+ on a 83 XS650SK cafe racer and it was just starting to act like the top end could refreshing but the bottom end was still in excellent shape.
I have 44,000 on my 20 year old GS1100E and will have the topend done at 60,000 but it's running fine and both of these bikes are "Air-Cooled".
Basicly if you have proper valve adjustments and use good "motorcycle specific motor oil". As long as you don't "constantly over-rev and rag the motor", it should be able to do 100,000 or more before the "whole" motor should be rebuilt.
Usually most riders get "bored" with a bike long before it's ready for a rebuild.
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BJ Ondo, "Old Fart"
Colorado
1980 GS1100E Suzuki
"The 1980's Hyabusa"
I have 44,000 on my 20 year old GS1100E and will have the topend done at 60,000 but it's running fine and both of these bikes are "Air-Cooled".
Basicly if you have proper valve adjustments and use good "motorcycle specific motor oil". As long as you don't "constantly over-rev and rag the motor", it should be able to do 100,000 or more before the "whole" motor should be rebuilt.
Usually most riders get "bored" with a bike long before it's ready for a rebuild.
------------------
BJ Ondo, "Old Fart"
Colorado
1980 GS1100E Suzuki
"The 1980's Hyabusa"