I just checked the compression on the Atomic BB's twin. It's a Flying Horse 48cc bought at the same time as mine, from the same Zoom Bicycles. It has less than 500 miles on it and is still running break in mix.
It has 62 psi. Mine with a lot more miles has 55psi. Because us this I think a 48cc probably will only have about 60 psi new.
This explains why my bike seems to run as well as new even with 55 psi.
Would be nice if more people with 50s would post their compression readings.
It has 62 psi. Mine with a lot more miles has 55psi. Because us this I think a 48cc probably will only have about 60 psi new.
This explains why my bike seems to run as well as new even with 55 psi.
Would be nice if more people with 50s would post their compression readings.