system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What's the difference between 11:1 and 10:7 Compression Ratios?

In terms of motorcycles, provided the same engine size, and all other aspects are the same, what difference does a compression ratio of 11:1 make to a compression ratio of 10:7?

Why is the 11:1 more oriented for sport riders, whereas the 10:7 is more oriented for comfort riding?

EDIT: I just noticed my HUGE mistake, it actually reads as: 11.3:1 and 10.8:1, I don't know why I read those wrong!
gpt
Compression ratio is the ratio of cylinder volume at bottom dead center and top dead center, or in other words: how compressed the air/fuel mixture gets inside the combustion chambers. Typically the higher the compression ratio the more power you can get out of an engine of a certain size.

The upside of a higher compression ratio is thus more power, but at the same time it requires a higher octane fuel to prevent engine knocking. Also engines with a higher compression ratio are under more stress while operating, leading possibly to faster wear.