I love my Blix foldable bike. My wife and I each have a Blix and we take them with us whenever we travel. They hold their charge for a long time. My Blix will get up to 20 MPH if I push it...climbs hills well. All in all a great bike. Why not 5 stars? It's really my fault not the bikes. I wanted "small and lightweight"...the design of this is such that if your left foot is at the bottom of your pedal stroke when you turn left, the pedal hits the road. I've adjusted to this and always keep my feet still and level during turns, but I've nearly dumped the bike in the past. Really what can you expect in an adult bike that is so small? I still LOVE the bike, but in retrospect, I should have purchased the larger one like my wife got. Oh, also - the folks at BLIX are incredibly service oriented . The fender on my wife's bike bent due to a packing accident that again was not fault of the bike...The Blix people sent me a brand new fender via two day express...FREE! What a pleasant surprise.