I rode it...Dad's bike, that is. Generally, I only take it around the neighborhood. I took it to a buddy's house that's 20 miles away with half of it on dirt roads. It did fine but I never could get it above 35mph. I got home and pulled the needle out and moved it up a notch and it seemed to pull harder around the neighborhood. The bad news is that PZ needles are very soft and likely aluminum. I bent the tip where the circlip goes but was able to straighten it.

MIJI - My advice?  I don't even follow it.