That propel is absolutely ridiculous. But at my current (and probably future) ability and stamina with a destroyed L5, 2 collapsed discs, and no carteledge in my right knee, 18 mph is the absolute best I can probably every hope for as an average and that propel would be wasted on me. I'll stick to my midrange bikes that weigh 15-16 lbs and just enjoy them.

It still makes me drool though.