I bought it recently, instead of the factory Amtel Planet DC, it's incorrect to compare them, Formula Energy is many times better in all respects, except for the wear and tear. So, in terms of rubber, it is very quiet! Moderately soft, rough asphalt on the steering wheel do not feel. Someone here wrote about balancing, so I have 2 wheels at all to zero! without cargo, and 2 wheels 20+20 grams, and 5 grams. On the go just a song, really very quiet.