The hardness of the pulley plate wheel is represented by the letter A. The larger the value, the higher the hardness. Wheels at 101A and above are regarded as hard wheels. The soft wheels start at around 85A. Double warping is rarely useful to the softness of 78A The big difference between the soft wheel and the hard wheel is in sliding. If you like the unique sound while sliding and still have some foot feeling, then choose the hard wheel. The advantage of the soft wheel in sliding is not that big. The sound, and it feels very soft, is just like standing on a sponge. The shortcoming is also obvious. The hard wheel has less friction, so you can just squeeze it over when you do some turning and turning movements. But the soft wheels may be unsatisfactory, which reduces the playability a bit, but considering the comfort on sliding is still good!
