Not bad at all. When I go for a new bike though I'm going to try for an SRAM hub, because I ride in weather down to far below zero F, and word is that the Shimano grease-filled hubs shift for cr*p in those temps, and SRAMs with synthetic oil in them still work well. Is there such a thing as synthetic grease? Does it stay loose in those temps, and is it rated to use in the Shimano Alfine?