TACX FLUX SMART
One of the most popular new models to hit the market, the
Tacx FLUX Smart is a maintenance-free, compact, interactive direct-drive trainer. Tacx has combined direct-drive technology with an electro brake to offer a value-priced “smart” direct-drive trainer. The swift response of the smart electronics and the seven-kilogram flywheel transmit the slightest fluctuations in resistance directly and accurately to your legs. With a flywheel creating 22.8 kilograms, an ample amount of resistance, the FLUX provides a realistic road feel.
Eight permanent ferrite magnets and eight electromagnets provide up to 1,500 watts of resistance, and with the ability to mimic a 10% slope, the FLUX provides good, consistent power feel to the indoor ride. From an easy spin to all-out-effort sprinting for a virtual finish line, during the test, the FLUX gave more than enough resistance, with a road-like feel that saw the hours riding indoors speed by. Automatically calibrating, the FLUX power measurement is accurate to within a claimed 3%.
Out of the box, the FLUX is compatible with 130mm and 135mm quick-release axles, and it will also work with 135x10mm, 142x12mm and 148x12mm axles with an adapter that is sold separately. The universal EDCO Multisys body fits all Shimano and SRAM non-XD cassettes, and will also work with some Campagnolo drivetrains. Set-up was relatively easy, as a small amount of base assembly is required.
All Tacx Smart trainers use the Bluetooth Smart and ANT+ FE-C protocol for communication, which allows them to be controlled by such third-party software as Zwift and TrainerRoad. Pairing the trainer with the iPad to use with Zwift was very easy and consistently reliable each and every ride. The software receives the speed, cadence and power from the trainer and controls the brake. Connections are confirmed by LED indication lights on the side of the trainer, making it easy to connect third-party apps. The FLUX can also be used in stand-alone mode – when no apps are connected, the trainer will simulate a flat road. The Tacx Utility app ensures that the latest firmware for the FLUX is installed, as the app sends notifications when an update is available. The ERG mode is also available for all your interval needs.
The footprint of the FLUX is 670x650mm, and was more compact and a little less sturdy than other trainers in this category, though not enough to cause any issues. The FLUX trainer is low to the ground, thus no wheel block is required, an added bonus.
The 142x12mm and 148x12mm bicycles will require a special adaptor axle that is available separately, and the FLUX Smart includes a two-year warranty. The SRP is $1,199.99.
Tacx FLUX Smart