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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 and Campagnolo. No cassette is included — fit your own or buy a matching one.

Thru-axle adapter

Same Type 1 vs Type 2 axle split as the Flux 2. Ships with 130/135 QR only; 12×142/148 thru-axle needs the separately-bought adapter on Type 1 units (~$50-60). Type 2 units mount the rider’s own thru-axle directly.

Specifications

Drive typeDirect drive
Factory model codeT2900S
Axle standards130 mm quick-release, 135 mm quick-release, 12 × 142 mm thru-axle and 12 × 148 mm Boost thru-axle
Thru-axle adapterSold separately
Freehub (in box)Shimano/SRAM HG (HyperGlide)
Freehub optionsShimano/SRAM HG (HyperGlide), SRAM XD Driver Body, SRAM XDR Driver Body and Campagnolo
CassetteSold separately
Max cassette speed12-speed
Virtual shiftingNo
ProtocolsANT+PLUS, ANT+FEC, BLUETOOTH
Power accuracy±3%
Max power1500 W
Max gradient10%
Flywheel6.7 kg
MSRP$749
StatusCurrent

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

Does the Tacx Flux S Smart fit your bike?

29Drops straight in3Fits with parts1Not supported

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Frequently asked questions

Yes. The Tacx Flux S Smart supports 12 × 142 mm thru-axle, 12 × 148 mm Boost thru-axle. The thru-axle adapter is sold separately — confirm the exact one for your bike.

Sources