Have ridden with spouse on countless rides the last few years - she on her e-assist Trek and me on my unassisted Bacchetta 'bent bike. We almost always tie for the finish. We always finish together when we ride our unassisted RANS 'bent tandem.
(To be honest, I'm always ahead of her on the tandem.)
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Bacchetta Giro A20, RANS V-Rex, RANS Screamer