1st build: ~1997 Bike Friday Family Tandem. Front hub, Grin AA with Phaserunner and CA3, 14S4P. Throttle only, PAS didn't fit existing parts.
2nd build: 2017 Xtracycle Edgerunner Swoop (mechanical). EZEE 350 RC rear hub, with phaserunner and CA3, 14S4P. Throttle and basic cadence PAS.