Which Type of Axle Do I Have on My Tacx Trainer?
Tacx direct-drive trainers will come in two different axle types described below.
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NOTE: Most newly purchased Tacx direct drive trainers will be a Type 2 trainer.The exception would be a trainer that has sat on a shelf for an extended period of time.
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Type 1 Axle
6 mm or 9 mm internal diameter axle hole suitable for a quick-release skewer. Adapters allow for a thru-axle bike to be installed onto the trainer using a quick-release skewer.
Type 2 Axle
12 mm internal diameter axle hole suitable for using a bike's thru-axle. Adapters allow the use of a quick-release skewer as well.
How Do I Determine Which Type of Axle My Trainer Has?
Type 1 trainers:
- NEO Smart
- NEO 2 Smart
- FLUX Smart
- FLUX S Smart*
- FLUX 2 Smart*
Type 2 trainers:
- NEO 2T
- NEO 2, Type 2
- FLUX S Smart*
- FLUX 2 Smart*
*NEO 2, FLUX S and FLUX 2 trainers have been manufactured using both Type 1 and Type 2 axles. You can choose one of the following identification methods to determine which axle type your trainer has:
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NOTE: If a Cassette is currently installed onto the Cassette Body of your trainer, you will need to remove it using a cassette lock ring tool and chain whip in order to read the part number
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Identify the part number on the cassette body installed on the trainer out of the box:
- Shimano Freehub bodies: Type 1, T2805.01 (S) compared to Type 2, T2875-01
- Observe the perimeter surface of the axle endcaps on the trainer, looking for any white letters / numbers identifying the appropriate side for installation and axle diameter x length:
- Type 1: All black endcap, Quick-release compared to thru-axle: no letters or numbers printed on either cap
- Type 2: Quick release caps will be labelled: "QR DS", "QR x 130 NDS" or "QR x 135 NDS". Thru-axle endcaps will be labelled: "12 DS", "12 x 142 NDS" or "12 x 148 NDS".
- Measure the inside diameter of the trainer axle with the cassette body removed using a caliper tool (pictured below)
- Type 1: 6mm or 9mm
- Type 2: 12mm
Which Cassette Body Do I Need for My Trainer?
Direct-drive trainers come with a SHIMANO/SRAM cassette body out of the box. If you need a replacement or different cassette body, below are part numbers available for purchase:
| Description |
Service Part Number |
| SHIMANO/SRAM Cassette Body (Type 1) |
S0012 |
| SHIMANO/SRAM Cassette Body (Type 2) |
S0050 |
| Tacx Campagnolo Cassette Body (Type 1) |
T2805.51 |
| Tacx Campagnolo Cassette Body (Type 2) |
T2875.51 |
| Tacx SRAM XD-R Cassette Body (Type 1) |
T2805.81 |
| Tacx SRAM XD-R Cassette Body (Type 2) |
T2875.76 |
| Tacx MICRO SPLINE Shimano 12spd Body (Type 2) |
010-13042-07 |
