howdy all. i've got a friend with a dahon folding bike, 20" wheels.
used for local commuting and some light touring.
riding mainly on pavement, with the occasional dirt road.
he weighs around 200+ pounds, with another 25 pounds or so on the rack.
the orginal 20-spoke wheels had too much spoke breakage, so we
upgraded to a 28-spoke rear, but still breaking spokes.

could just be a bad build, or maybe need a stronger wheel.
i've never ridden this sort of bike, so need some advice.
y'all that carry a decent amount of weight....wheel problems?
what would you suggest?

i could buy some new high-quality spokes and rebuild his wheel.
in that case, anyone recommend spoke brand/type and lacing?

or i could just build him a stronger wheel. i was thinking of a novatek
sealed bearing hub (130mm) with 32 spokes. not enough? how about
a shimano dura-ace/ultegra with 36 spokes? thinking of going with an
alex rims DH-19.