I had a problem the other day with my Tacx Fortius and I actually forgot that I had had the same issue just after I had bought it. The trainer would work fine when cycling and then suddenly the rear would start braking in a erratic way. Almost braking and then releasing with small jerks.

After some googling I found that it was quite a common fault with the Fortius units and all it was was just the connector plug that had some loose wires. Below are some photos of how to fasten these again.

I've get a lot of requests on setting up the Tacx Fortius Multiplayer, so here is the official setup instructions from Tacx.

Click here to download the Tacx Fortius Multiplayer Windows Settings.  Note that this file is 0.9Mb in size.

This file came from the Tacx site at Tacx.com.

Other manuals for the Tacx Fortius that I have also uploaded are:

• Tacx Fortius Instruction Manual
• Tacx Fortius Assembly Manual

I've get a lot of requests for the Tacx Fortius Assembly Manual, so here it is.

Click here to download the Tacx Fortius Assembly Manual.  Note that this file is 0.5Mb in size.

This file came from the Tacx site at Tacx.com.

Other manuals for the Tacx Fortius that I have also uploaded are:

• Tacx Fortius Instruction Manual
• Tacx Fortius Multiplayer Windows Settings

I've get a lot of requests for the Tacx Fortius Manual, so here it is.

Click here to download the Tacx Fortius Manual.  Note that this file is 8.77Mb in size.

This file came from the Tacx site at Tacx.com.

Other manuals for the Tacx Fortius that I have also uploaded are:

• Tacx Fortius Assembly Manual
• Tacx Fortius Multiplayer Windows Settings

I came across this Indoor Trainer site recently that is....well different.  What it basically tries to simulate is the sideways motion that you get from your bike on the road whereas on an indoor trainer your bike stays rigid.

If you go around corners on the road you'll tend to lean into that corner, but not on your trainer.  Also going up hills you'll tend to sway your bike as you stand and pedal.

I've only seen their site and it does look impressive although a little pricey.  It is also more of a spinning bike than a pure indoor trainer but if you like it then look into it. I still prefer my Tacx Virtual Trainer though. It might not have the motion but you can't beat it for a good training session. After all are you going to push yourself hard on a spinning bike if you already feel tired? With the Tacx at least you'll be trying to keep up with Cadel Evans.

You can get a closer look here at their site.  They also have free classes if you live in Santa Monica.  Enjoy.

This is just a short YouTube video to show you what a Tacx Fortius looks like when you've set it up.

Please leave me any comments or questions below.  Thanks.