The Tacx Sirius is a striking cycletrainer featuring "silent" action. This magnetic brake is fitted with a Soft Gel roller and a stainless steel running surface. A balanced 2 kg steel flywheel gives a smooth pedalling action. The resistance lever provides 10 resistance settings. The frame is collapsible and has a slight spring while being ridden.

The Tacx Sirius is fitted with a Tacx Soft Gel roller which has additional noise reduction properties. The roller is manufactured in soft rubber plastic as is combined with a non-wearing stainless steel running surface. Indeed this action so unique that we have had the system patented. Tacx offers a lifetime warranty covering roller wear.