Slightly more expensive than Kama but lasts much longer in everyday use. Skated for two years with no noticeable flaws. Brake dust had already removed some spots on Kama. A miser would probably buy multiple pairs of inexpensive ones, but I've been riding Pirelli for years. Advantages that vary Soft rubber makes for a good grip. It's also quite capable on bumpy roads. Negatives include the clicking sound made by pebbles lodged in the tread. But I can't say for sure that this is a drawback. The very deep tread appears to be the culprit.