FFitMyTrainer
Checker

What you need to set up the Tacx Flux S Smart

Quick answer

To ride the Tacx Flux S Smart you need the following parts. Add a 11-speed cassette on a Shimano/SRAM HG (HyperGlide) body (matching your bike’s drivetrain). You’ll also need the thru-axle adapter for your axle (sold separately).

As an Amazon Associate we earn from qualifying purchases. Links below go to the matching part category — pick the exact size/speed for your bike. Affiliate disclosure

Your parts checklist

Cassette

Buy a 11-speed cassette for a Shimano/SRAM HG (HyperGlide) body, matching your bike’s rear-derailleur speed.

Find on Amazon

Freehub body

Ships with a Shimano/SRAM HG (HyperGlide) body fitted.

Other freehub bodies you can fit (sold separately) if your bike uses a different drivetrain:

Thru-axle adapter

Sold separately — buy the manufacturer’s thru-axle adapter for your axle size.

Find on Amazon

Before you buy

Frequently asked questions

It depends on the trainer: typically a cassette matching your bike’s speed on the right freehub body, and a thru-axle adapter if your frame is thru-axle. The checklist above resolves exactly which of these the Tacx Flux S Smart needs.