What you need to set up the Zwift Hub (classic)
To ride the Zwift Hub (classic) you need the following parts. Its cassette is already fitted (Pre-installed cassette; speed (8–12) chosen at purchase), so you can ride straight away if it matches your bike. The thru-axle adapters are included in the box.
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
Ready to ride
This trainer needs no extra parts for a standard setup — just mount your bike.
Your parts checklist
Cassette
Included — Pre-installed cassette; speed (8–12) chosen at purchase. Only replace it if it doesn’t match your bike’s speed.
Freehub body
Ships with a Shimano/SRAM HG (HyperGlide) body fitted.
Thru-axle adapter
Included in the box — no separate purchase.
Mounting your bike
What the Zwift Hub (classic) actually asks of you, in order — resolved from its own spec, not a generic manual.
- Take the rear wheel off the bike. A direct-drive trainer replaces it entirely.
- Fit the end caps or thru-axle adapter for your frame. This trainer covers 130 mm quick-release, 135 mm quick-release, 12 × 142 mm thru-axle and 12 × 148 mm Boost thru-axle and ships the adapters in the box, so nothing extra to buy.
- The cassette is already fitted, so lower the bike on and engage the axle. Check it matches your drivetrain speed before the first ride.
- Spin the cranks by hand before you clip in: the chain should run quiet and straight. Noise here almost always means chainline or cassette spacing, not a faulty trainer.