Originally Posted by
JohnDThompson
The two detriments of steel rims are weight and braking performance. You have a coaster brake, so braking performance isn't an issue. If you're not bothered by the weight, by all means a steel rim is perfectly fine.
I wouldn't be attempting a world tour, relying on a coaster brake for back-up. Descending a mountain, in the rain, on a fully loaded bicycle with steel rims would be a terrifying experience. If steel rims and IGH were mandatory, I'd be building the rear wheel around a Shimano Nexus hub with a disc brake rotor.