I haven't ridden a 3-speed hub in decades... but I set up a winter bike with a Shimano 3-speed hub in the rear (to reduce the road grime on the drive train issue). So far so good.
Question... is there naturally a sorta tickety-tick sound in 1st and 3rds gears? SEems like 2nd is the fixed gear. It's not like it slows down, but I'm wondering if those outside gears are a little noisier?