Our Take
The Tacx Flux 2 Smart is a direct-drive turbo trainer aimed at serious indoor cyclists who want accurate, responsive training without the expense of a top-tier unit. It sits comfortably in the mid-to-upper market, offering a claimed power accuracy of ±2.5% and resistance up to 2,000 watts — sufficient for most amateur and enthusiast riders.
Key Features
Direct-drive design: rear wheel removed, cassette mounted directly onto the trainer's freehub
Claimed power accuracy of ±2.5%, which is competitive at this price point
Maximum simulated gradient of 16%, adequate for most training scenarios though not class-leading
Dual ANT+ and Bluetooth connectivity, compatible with Zwift, TrainerRoad, Wahoo SYSTM and similar platforms
Maximum resistance of 2,000 watts, suitable for sprint efforts by most non-elite riders
Relatively compact and foldable legs for storage in a typical home or flat
Our Verdict
A solid, dependable choice for dedicated amateur cyclists who train regularly on platforms like Zwift and want accurate power data without paying flagship prices. Those who ride at elite sprint power outputs or frequently tackle steep virtual climbs may find the gradient and wattage ceiling limiting and should consider stepping up.