The transition from the bottom end to the midrange on both the 250i and 300i was perplexing at certain times. When I slowly turned the throttle from about a quarter turn to half turn, the engine would feel as if it was a bit rich. The slight hesitation went away when I turned the throttle a little further and it burst into the midrange power, which was sudden and plentiful. At the same time, when I opened the throttle quickly, such as transition from lugging it to wide open, the engine didn’t have the slight hesitation whatsoever, it only happened when I slowly turned the throttle. Thankfully, most of the time I was either lugging the bike or keeping it in the upper mid-range to top end power, so the slight hesitation wasn’t really a big deal for me.