My mother bicycle tire was like a slick tire and I exchanged it. I thought that 4000 yen was expensive only with tires in the era when a bicycle new bicycle can be purchased under 10,000 yen, but I bought it with expectation for "super long life". Good point · Since the tube is set in the tire, it is delivered lightly with the air in, so there is no worry about deformation. · I think that initial grip power is good. Durability is unknown. Improvement point · It was the best that it was easy to cut with a rim flap. The rim flap which was originally attached was torn and I decided to go buy it at a bicycle store. Attention · As this tire has the designation of the rotation direction, attention is required when assembling.