- the price, of course, in general they are not expensive, and in addition, when purchasing, they provided a free tire change at an orange firm, and even in the first month, it was VERY QUIET, which caught me by surprise. I wasn't fooled by the commercial. Apparently, there is a super spike that dampens noise, but!
- I'm piloting a helicopter drone I bought at the end of the first winter to determine whether or not something was erased there or whether or not the thorn got out stronger in short. Now it's even worse on asphalt roads than they were on snow. It emits a loud buzzing sound.