It’s an old Pro Form Fitness 790 static bike. I bodged a BTwin spd/cad sensor into it so I could see metrics on my Edge 800, and manually tweaked the “wheel size” setting in my Garmin until it matched the speed given on the bike’s own speed sensor (not ideal, but close enough for training). The setting in the Garmin is 5369mm as a wheel size (probably similar to a Penny Farthing, lol)
Because of the layout of the bike’s internals, the speed magnet rotates at the same RPM as the cadence magnet (there’s only one flywheel).
I used the “Speed Sensor+classic trainer” profile, linked the cadence sensor, speed sensor and HRM to Zwift, and set my weight correctly (170lb).
Is there anything I can do to make this work? For various reasons I can’t currently afford a turbo and don’t have a power meter. I’m working on the assumption that this setup would not work and have therefore borrowed a friend’s rollers, but having never ridden rollers before it’s going to be a steep learning curve…