The Blue Twist is a great entry level turbo trainer for those just starting out or great as an in affordable warm up trainer for race day. The Blue Twist is a great entry level turbo trainer with a maximum resistance of 700 watts. You manually set the resistance, selecting one of the seven positions using a switch on the brake. Magnetic brake The magnetic brake has a simpler braking system & is therefore ideal for straightforward training sessions such as warming up before a race & endurance training. The road is simulated using different positions that you adjust yourself. The Blue Matic’s magnetic brake consists of two discs with 8 permanent-magnets each. With the 10 position handlebar resistance lever you can change the position of the magnets in the brake unit in relation to each other. While training the resistance increases when you cycle faster and/or in a heavier mode. The maximum resistance is 700 Watt.