That many round cells and spot welds is enough to turn me off, but indeed, nothing wrong with the pack whatsoever.
Me, I'd crash the bike and pop some of the welds.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE
Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum
See battery technology section, FAQ thread at the top of the page for lipo noob info.