BiggFred

Has anybody ever had this problem with their Tacx Flux series? This is my second trainer, the first Flux S squeaked and did this as well.

I can’t post a video, but the drivetrain keeps moving when I stop pedalling. This causes the chain to fall off.

Im hoping it’s something I’ve done in assembly, but that’s pretty fool proof. However, my real name is Fred, so you never know 😉

J.C. Koto

When the bike is on the trainer can you pedal backwards freely? If not, when the bike is off the trainer does the cassette spin freely when you turn it counter-clockwise?

BiggFred

I finally found the issue. The replacement unit I received was missing a piece of the axle assembly, so the unit was jammed.

I should have known what the problem was, but I was too excited to start training again. It was the small bushing type piece that slides on the axle before fasting on the free hub body.

Thanks for responding!