Give yourself a boost with the tacx booster this sturdy cycletrainer creates pure power thanks to its advanced magnetic brake the booster generates very high powers at low speeds the integrated brake system consists of 8 permanent magnets with a 2 kg flywheel and can reach a maximum resistance of no less than 1050 watt booster is easy to assemble and also safe because the brake has been built in to prevent the rider from contact with the hot flywheel the booster is the new number 1 cycletr