Yes it is, I loved it when I was riding Nikki's around. It don't get out much since we lowered it an inch!!!! But it was awesome I think I shaved a whole 45 min off time when doing a "Certain Loop" (undisclosed) the fist time I took it up them hills and just riding around town a few times. Then got back on mine and kept that time shaved off. It really can help riding technique and makes you push just a little harder.
I was thinking about the 300 but not yet. Still trying to help Nikki to get back in the saddle when weather permits (she is cold blooded)