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Tacx Flux S Smart - 2021

Tacx Flux S Smart
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The Smart choice for performance

The FLUX S ticks all the boxes when you’re looking for a direct drive trainer. Reliable, accurate, silent, strong, and with excellent ride feel, this bike trainer is the ideal indoor training companion for hours of torture or pleasure.

The ride feel is super smooth and very responsive thanks to the large 7kg flywheel ensures a fantastic ride feel, replicating the sensation of riding on the road. Like all trainers, it pairs seamlessly with the most popular training apps and software available.

Reliable, accurate, and consistent power measurement is key to keeping track of your performance and progress. The FLUX S excels, accurately measuring watts to within 3%. It’s a strong trainer with a maximum sprint resistance of 1500 watts and can realistically simulate inclines up to 10% gradient. It’s a great direct drive trainer for the majority of the amateur riders and an ideal training companion.

- Measure your power within 3% error tolerance
- Next-to-silent direct drive trainer lets you ride without disturbing others
- Works with popular third-party training apps such as Zwift and Tacx
- Train with realistically simulated inclines up to a 10% gradient and a max sprint resistance of 1,500 watts
- Sturdy design easily allows for riding full-out and standing on the pedals

Type of trainer: Interactive Smart direct drive with electric brake
Magnets: 8 Permanent ferrite magnets & 8 electromagnets
Transmission: None
Electrical requirements: 110-240 Volt
Power indicator: None
Connection indicator (ANT/BT): 2 LEDs
Firmware upgradable: Yes
Suitable cassettes: Shimano & SRAM: 8 - 11 speed, Campagnolo. Not suitable for Specialized SCS system, SRAM XD and XD-R body sold separately
Suitable axles: Road 130mm, MTB 135mm, 142mm & 148mm thru-axles. Adapter for 135 x 10mm available.
Suitable bikes: Race, Tri, & MTB
Supplied with: Quick release for road bikes and mountain bikes (5mm), Direct-drive quick release with adapter set for 142x12mm & 148x12mm thru-axles, 1 month Tacx Premium software

Max. power (40 km/h): 1500 Watt
Max. incline: 10%
Simulation of descent: No
Max. torque: 22.1 Nm
Max. brake force: 65 N
Flywheel: 7kg
Mass inertia: 22.8kg (50.3 lbs)
Calibration: Spin down
Footprint (lxw): 670 x 642 mm (26.4 x 25.3 in)
Height: 460mm (18.1 in)
Weight: 22.8kg (50.3lbs)
Article number: T2900S

Wireless communication: ANT+ FE-C, Bluetooth Smart open
Control by: ANT+FE-C bike computers, Connect to computer via ANT+antenna, Smartphone, Tablet, Stand alone
Output: Cadence, Power, Speed
Read out on: Bike computer, Computer with ANT+ antenna, Smartphone, Sports watch, Tablet
Error Tolerance: <3%


Part Numbers

Option UPC MPN Store SKU
Black 8714895055169 T2900S TAC29514491C