I left for 2 seasons, about 25t. km . the wheel began to flatten, they saw in the tavern that it was poisoning from under the spike, they pulled out the spike, put a tourniquet. After a couple of weeks, it descends again, already poisoning from 4 spikes. The verdict is to put the camera, or throw it out. The blessing that in a week to change shoes while pumping up. The ride is not aggressive, without slipping, for 2 winters 25-30 percent of spikes flew out