Tacx Flux 2 SMART Light Combo Flattop™ technology allows for a

Flattop™ technology allows for a narrower chain with quieter operation and increased strength and durability

That means reliable engagement and release

Braced side lugs improved cornering

400 lumen output / 300-hour max runtime in Femto mode

and the once radiant

Tacx Flux 2 SMART Light Combo Flattop™ technology allows for aMaximum resistance of 2000 watt Incline simulation up to 16% Power measurement accuracy of 2. 5% Heavier 16. 8 lbs flywheel improving realism Measure speed, cadence and power Compatible with long cage derailleurs Axle compatibility: 130mm, 135mm, 142x12mm and 148x12mm Compatible with Bluetooth and ANT + FE C Comes with Shimano SRAM compatible freehub body (Except SRAM XD and XDR). Campagnolo, SRAM XD and XDR bodies sold separately (890732 or 891051)