Tacx Flux S Smart compatibility
Tacx · Direct drive · Current
Quick answer
The Tacx Flux S Smart accepts 130 mm quick-release, 135 mm quick-release, 12 × 142 mm thru-axle and 12 × 148 mm Boost thru-axle, ships with a Shimano/SRAM HG (HyperGlide) freehub, and supports Shimano/SRAM HG (HyperGlide), SRAM XD Driver Body, SRAM XDR Driver Body, Campagnolo and Shimano Micro Spline. No cassette is included — fit your own or buy a matching one.
Before you order an adapter
In the box: 130 mm quick-release and 135 mm quick-release. Sold separately: 12 × 142 mm and 12 × 148 mm Boost — confirm the exact part for your bike.
Tacx built two axle designs. Pre-Q4-2019 “Type 1” units need the separate 010-13143-00 / T2835 adapter kit for 12 × 142 and 12 × 148; later “Type 2” units take your own thru-axle directly. The two kits are not interchangeable, and replacement freehub bodies are Type-specific as well, so check which unit you have before ordering either part.
12 × 100 mm is a front-wheel axle, not a rear one: a modern rear axle is 12 × 142 mm, or 12 × 148 mm on a Boost mountain bike.
Specifications
| Drive type | Direct drive |
|---|---|
| Factory model code | T2900S |
| Axle standards | 130 mm quick-release, 135 mm quick-release, 12 × 142 mm thru-axle and 12 × 148 mm Boost thru-axle |
| Thru-axle adapter | 130 mm quick-release and 135 mm quick-release in the box · 12 × 142 mm and 12 × 148 mm Boost separately |
| Freehub (in box) | Shimano/SRAM HG (HyperGlide) |
| Freehub options | Shimano/SRAM HG (HyperGlide), SRAM XD Driver Body, SRAM XDR Driver Body, Campagnolo and Shimano Micro Spline |
| Cassette | Sold separately |
| Max cassette speed | 12-speed |
| Virtual shifting | No |
| Protocols | ANT+, ANT+ FE-C, Bluetooth |
| Power accuracy | ±3% |
| Max power | 1500 W |
| Max gradient | 10% |
| Flywheel | 6.7 kg |
| MSRP | $749 |
| Status | Current |
Linked standards: 130 mm quick-release, 135 mm quick-release, 12 × 142 mm thru-axle, 12 × 148 mm Boost thru-axle · freehubs: Shimano/SRAM HG (HyperGlide), SRAM XD Driver Body, SRAM XDR Driver Body, Campagnolo, Shimano Micro Spline
Does the Tacx Flux S Smart fit your bike?
29Drops straight in3Fits with parts1Not supported
- Elite AvantiDrops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Elite Direto XRDrops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- Elite JustoDrops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Elite Justo 2Drops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- Elite RivoDrops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Elite Suito-TDrops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Elite TuoDrops straight in
- • Wheel-on — it clamps your rear axle and uses your existing wheel and cassette.
- Elite ZumoDrops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- JetBlack VictoryDrops straight in
- • Ships with the Zwift Cog — virtual shifting means no cassette to match.
- JetBlack VOLT V2Drops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- JetBlack WhisperDrive SmartDrops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Kinetic R1Drops straight in
- • The trainer takes this axle, but we could not verify which adapters ship in its box.
- • Drops straight in — adapter and freehub are covered out of the box.
- Saris H2Drops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Saris H3Drops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Tacx Flux 2 SmartDrops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Tacx NEO 2Drops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Tacx NEO 2TDrops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Tacx NEO 3MDrops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- Van Rysel D100Drops straight in
- • Ships with the Zwift Cog — virtual shifting means no cassette to match.
- Van Rysel D500Drops straight in
- • Ships with the Zwift Cog — virtual shifting means no cassette to match.
- Van Rysel RCRDrops straight in
- • Ships with the Zwift Cog — virtual shifting means no cassette to match.
- Wahoo KICKR CORE (1st gen)Drops straight in
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Wahoo KICKR CORE 2Drops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- Wahoo KICKR MOVEDrops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- Wahoo KICKR V5 (2020)Drops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- Wahoo KICKR V6 (2022)Drops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- Xplova Noza SDrops straight in
- • The trainer takes this axle, but we could not verify which adapters ship in its box.
- • You’ll fit your own cassette (or buy a matching one).
- • Drops straight in — adapter and freehub are covered out of the box.
- Zwift Hub (classic)Drops straight in
- • Drops straight in — adapter and freehub are covered out of the box.
- Zwift Hub OneDrops straight in
- • Ships with the Zwift Cog — virtual shifting means no cassette to match.
- Magene T300Fits with parts
- • Needs a thru-axle adapter (sold separately).
- • You’ll fit your own cassette (or buy a matching one).
- Tacx Flux S SmartFits with parts
- • Needs a thru-axle adapter (sold separately).
- • You’ll fit your own cassette (or buy a matching one).
- Wahoo KICKR SNAPFits with parts
- • Needs a thru-axle adapter (sold separately).
- Tacx Flow SmartNot supported
No support for your 12 × 142 mm thru-axle axle on this trainer.
Guides for this trainer
More Tacx trainers
Frequently asked questions
Yes. The Tacx Flux S Smart supports 12 × 142 mm thru-axle, 12 × 148 mm Boost thru-axle. In the box: 130 mm quick-release and 135 mm quick-release. Sold separately: 12 × 142 mm and 12 × 148 mm Boost — confirm the exact part for your bike.
The Tacx Flux S Smart ships with a Shimano/SRAM HG (HyperGlide) freehub and supports Shimano/SRAM HG (HyperGlide), SRAM XD Driver Body, SRAM XDR Driver Body, Campagnolo and Shimano Micro Spline. Non-included bodies are sold separately.
No — you fit your own cassette (reuse a spare wheel’s or buy one matching your drivetrain speed).
No cassette: you fit your own or buy one. The freehub body already on it is Shimano/SRAM HG (HyperGlide). Axle hardware in the box covers 130 mm quick-release, 135 mm quick-release. Sold separately, if you need it: SRAM XD Driver Body, SRAM XDR Driver Body, Campagnolo, Shimano Micro Spline.
Yes — a SRAM XD and SRAM XDR freehub body is available for the Tacx Flux S Smart (sold separately unless it ships with one).
Yes — a Shimano Micro Spline freehub body is available for the Tacx Flux S Smart, so Shimano 12-speed MTB cassettes (XTR, XT, SLX, Deore) fit.
Yes — a Campagnolo freehub body is available for the Tacx Flux S Smart.
No — the Tacx Flux S Smart uses a physical cassette and does not support virtual shifting. The manufacturer has ruled virtual shifting out for this model: no firmware is coming, so a Zwift Cog on it is one fixed gear and nothing else.