I have only two things about the bike so far that I want to change right away – the seats and the bar vibration. I ordered a set of weights from HVMP.com (extra-heavy) in black and show you guys how to install them! I also do a side by side test with the stock bar ends, to visually show you the difference at the 4k rev mark, where you are cruising about 70-80 on this bike in 5th.