Setting up a FLUX Series Smart Trainer

This FAQ will cover the installation process for setting up your Tacx FLUX Series Smart trainer, including compatibility questions regarding axles, cassettes and bicycles.

Out of Box and Installation

The following video will show you the unboxing process and how to install your cassette, install the axle, mount your bike to the trainer and explain what the different LED lights mean.

NOTE: When installing your cassette make sure that you tighten the lock-ring down to the manufacturer's recommended torque specification.

Unboxing the FLUX Smart

Axle Compatibility

Garmin Tacx smart trainers support both Quick Release (QR) and Thru axles. The FLUX Smart trainers come with a standard quick release skewer. If your bike requires a different axle, we offer adapters and end caps to accommodate your setup.

NOTE: Rapid Axle Technology (R.A.T.) systems are not compatible with Type 1 FLUX Smart Trainers. However, R.A.T. systems are compatible with Type 2 FLUX Smart Trainers.

Select your trainer's axle type below for size specific instructions.

To determine if you have a Type 1 or Type 2 trainer axle see:  Which Type of Axle Do I Have on My Tacx Trainer?

NOTE: Flux Series trainers are not compatible with axles larger than 12 x 148mm or Super Boost axles.

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Type 1

Select your bike's axle size below.

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130mm Quick Release

No additional set up needed. The trainer is set up for bikes with 130mm spacing out of the box. After placing your bike on the trainer, use the included Tacx Universal quick release skewer to fasten.

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12 x 142 - 148mm Thru Axle

The Axle Adapter Kit for Tacx FLUX and NEO (Part# 010-13143-00) is included with FLUX Type 1 trainers for bikes with a 12mm thru-axle. The axle adapter kit is required to couple the rear stay with the thru-axle mount on a Tacx FLUX or NEO Smart trainer.

1. Remove both the drive side and non-drive side quick release end caps pre-installed on the trainer.

   

2. Install the 12mm drive side end cap.

   

3. Install the 12mm non-drive side end cap for 12x142mm spacing. For 12x148mm spacing, install the included 5mm spacer on the threaded portion of the end cap.

   

4. Place the bike frame on the trainer.

5. Install the non-drive side adapter appropriate for your bike frame. There are two options: Conical and Flat. If you are not sure which to use, compare the two adapters to the thru axle from your bike and choose the one that looks most similar in shape.

    

6. Install the appropriate drive side adapter for your bike depending on the thread pattern of your frame's rear drive side drop out. There are three options: 12x1.0, 12x1.5, and 12x1.75.  If you are not sure which to use, compare the threads on the adapter to the threads of the thru axle on your bike. They should match perfectly.

   

7. Install the included Tacx quick release skewer for thru-axle bikes (the longer of the two quick release skewers) to fasten your bike to the trainer and start training!

   

Placing Axel for a Tacx Direct Drive

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135mm Thru Axle (Less Common)

NOTE: If your bike features a 12x135mm rear thru axle, it is not compatible with a Type 1 FLUX series trainer. It is compatible with a Type 2 FLUX series trainer.

10x135mm: If your bike features a 10x135mm rear thru axle, you can purchase the Tacx Direct Drive Quick Release End Cap Set, 135 x 10mm (Part# T2840) through an online retailer.

1. Remove both the drive side and non-drive side quick release end caps pre-installed on the trainer.

    

2. Install the 10mm drive side end cap.

   

3. Install the 10mm non-drive side end cap.

   

4. Place your bike on the trainer.

5. Install the non-drive side adapter in the non-drive side drop out on your bike frame. This allows the quick release to be installed.

   

6. Install the drive side adapter and the quick release.

   

7. Fasten the quick release and then start training!

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135mm Quick Release

1. Remove the non-drive side (NDS) axle end cap.

    

   
   

2. Place the included 5mm spacer on the end cap.

3. Replace the adapter on the trainer axle.

   

   

4. Place your bike on your trainer and install the Tacx Universal quick release skewer to fasten and start training!

   

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Cassette Compatibility

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Type 2

FLUX Series Type 2 trainers come equipped with the Shimano/SRAM Cassette Body (2018 trainers and newer). This is a standard Shimano/SRAM cassette body. Any 8 to 12 speed Shimano or SRAM cassette can be placed on this cassette body. Additionally, a standard lockring can be used in combination with this Shimano/SRAM cassette body.

What if I Need a Different Cassette Body?

Additional cassette bodies suitable for Campagnolo and SRAM XD-R cassettes can be obtained from Garmin:

• Tacx Campagnolo Body (Type 2)

• Tacx SRAM XD-R Body (Type 2)

• Tacx MICRO SPLINE Body (Type 2)

NOTE: We recommend a new cassette and preferably a new chain to reduce noise levels and improve your cycling experience.

Bicycle Compatibility

The FLUX Smart trainers are compatible with most bike frames.