Or built for a place with only dirt roads, heavy muds during a rainy season, probably very limited ability to get spare parts, and a desire to use it for years after buying it.
I'd have thought reducing weight would provide more utility (in rural monsoon areas, say) if violent contact wasn't part of the problem - it might survive crashes that destroy the bike, maybe that's the design decision.
FWIW, I'm not saying it's wrong, just notable in the apparent robustness.
FWIW, I'm not saying it's wrong, just notable in the apparent robustness.