Does the donor have horizontal dropouts? I can't find any good pics of this bike.
I've never had a 7 spd Nexus but have 3 Nexus 8 speeds and a Alfine 8 speed that have been bulletproof. I converted my 82 Schwinn road bike to a hybrid/cruiser like bike to a Nexus 8 speed. I also like being able to use the Alfine Shifters on the Nexus hubs as the Nexus twist shifters are crap.

This bike would be ok except for that set back seat.

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