Here's a Tri-Star, a 3 speed I picked up a year ago. The front rack is a Wald and the front wheel isn't original. Shimano 3S rear hub and 27" steel rims. The last bit suggests that the 650A (590) size was a nonentity in the US LBS channel at the time, relegated to discount and hardware stores. This smallish size probably would have worked better with 650A wheels. The original front hub is one of those sub-100mm OLD cheapies with bearings in retainers, so the Tri-Star was a fairly low-end model. It's now being used as a daily commuter, so I'm glad it found a good home.